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  • javascript技巧大全套

      1 事件源对象 
      2 event.srcElement.tagName 
      3 event.srcElement.type 
      4 捕获释放 
      5 event.srcElement.setCapture();  
      6 event.srcElement.releaseCapture();  
      7 事件按键 
      8 event.keyCode 
      9 event.shiftKey 
     10 event.altKey 
     11 event.ctrlKey 
     12 事件返回值 
     13 event.returnValue 
     14 鼠标位置 
     15 event.x 
     16 event.y 
     17 窗体活动元素 
     18 document.activeElement 
     19 绑定事件 
     20 document.captureEvents(Event.KEYDOWN); 
     21 访问窗体元素 
     22 document.all("txt").focus(); 
     23 document.all("txt").select(); 
     24 窗体命令 
     25 document.execCommand 
     26 窗体COOKIE 
     27 document.cookie 
     28 菜单事件 
     29 document.oncontextmenu 
     30 创建元素 
     31 document.createElement("SPAN");  
     32 根据鼠标获得元素: 
     33 document.elementFromPoint(event.x,event.y).tagName=="TD 
     34 document.elementFromPoint(event.x,event.y).appendChild(ms)  
     35 窗体图片 
     36 document.images[索引] 
     37 窗体事件绑定 
     38 document.onmousedown=scrollwindow; 
     39 元素 
     40 document.窗体.elements[索引] 
     41 对象绑定事件 
     42 document.all.xxx.detachEvent('onclick',a); 
     43 插件数目 
     44 navigator.plugins 
     45 取变量类型 
     46 typeof($js_libpath) == "undefined" 
     47 下拉框 
     48 下拉框.options[索引] 
     49 下拉框.options.length 
     50 查找对象 
     51 document.getElementsByName("r1"); 
     52 document.getElementById(id); 
     53 定时 
     54 timer=setInterval('scrollwindow()',delay); 
     55 clearInterval(timer); 
     56 UNCODE编码 
     57 escape() ,unescape 
     58 父对象 
     59 obj.parentElement(dhtml) 
     60 obj.parentNode(dom) 
     61 交换表的行 
     62 TableID.moveRow(2,1) 
     63 替换CSS 
     64 document.all.csss.href = "a.css"; 
     65 并排显示 
     66 display:inline 
     67 隐藏焦点 
     68 hidefocus=true 
     69 根据宽度换行 
     70 style="word-break:break-all" 
     71 自动刷新 
     72 <meta HTTP-EQUIV="refresh" CONTENT="8;URL=http://c98.yeah.net"> 
     73 简单邮件 
     74 <a  href="mailto:aaa@bbb.com?subject=ccc&body=xxxyyy">  
     75 快速转到位置 
     76 obj.scrollIntoView(true) 
     77  78 <a name="first"> 
     79 <a href="#first">anchors</a> 
     80 网页传递参数 
     81 location.search(); 
     82 可编辑 
     83 obj.contenteditable=true 
     84 执行菜单命令 
     85 obj.execCommand 
     86 双字节字符 
     87 /[^\x00-\xff]/ 
     88 汉字 
     89 /[\u4e00-\u9fa5]/ 
     90 让英文字符串超出表格宽度自动换行 
     91 word-wrap: break-word; word-break: break-all; 
     92 透明背景 
     93 <IFRAME src="1.htm" width=300 height=180 allowtransparency></iframe> 
     94 获得style内容 
     95 obj.style.cssText 
     96 HTML标签 
     97 document.documentElement.innerHTML 
     98 第一个style标签 
     99 document.styleSheets[0] 
    100 style标签里的第一个样式 
    101 document.styleSheets[0].rules[0] 
    102 防止点击空链接时,页面往往重置到页首端。 
    103 <a href="javascript:function()">word</a> 
    104 上一网页源 
    105 asp: 
    106 request.servervariables("HTTP_REFERER") 
    107 javascript: 
    108 document.referrer 
    109 释放内存 
    110 CollectGarbage(); 
    111 禁止右键 
    112 document.oncontextmenu = function() { return false;} 
    113 禁止保存 
    114 <noscript><iframe src="*.htm"></iframe></noscript> 
    115 禁止选取<body oncontextmenu="return false" ondragstart="return false" onselectstart ="return false" onselect="document.selection.empty()" oncopy="document.selection.empty()" onbeforecopy="return false"onmouseup="document.selection.empty()>  
    116 禁止粘贴 
    117 <input type=text onpaste="return false"> 
    118 地址栏图标 
    119 <link rel="Shortcut Icon" href="favicon.ico"> 
    120 favicon.ico 名字最好不变16*16的16色,放虚拟目录根目录下 
    121 收藏栏图标 
    122 <link rel="Bookmark" href="favicon.ico"> 
    123 查看源码 
    124 <input type=button value=查看网页源代码 onclick="window.location = 'view-source:'+ 'http://www.csdn.net/'"> 
    125 关闭输入法 
    126 <input style="ime-mode:disabled"> 
    127 自动全选 
    128 <input type=text name=text1 value="123" onfocus="this.select()"> 
    129 ENTER键可以让光标移到下一个输入框 
    130 <input onkeydown="if(event.keyCode==13)event.keyCode=9"> 
    131 文本框的默认值 
    132 <input type=text value="123" onfocus="alert(this.defaultValue)"> 
    133 title换行 
    134 obj.title = "123 sdfs " 
    135 获得时间所代表的微秒 
    136 var n1 = new Date("2004-10-10".replace(/-/g, "\/")).getTime() 
    137 窗口是否关闭 
    138 win.closed 
    139 checkbox扁平 
    140 <input type=checkbox style="position: absolute; clip:rect(5px 15px 15px 5px)"><br> 
    141 获取选中内容 
    142 document.selection.createRange().duplicate().text 
    143 自动完成功能 
    144 <input  type=text  autocomplete=on>打开该功能  
    145 <input  type=text  autocomplete=off>关闭该功能    
    146 窗口最大化 
    147 <body onload="window.resizeTo(window.screen.width - 4,window.screen.height-50);window.moveTo(-4,-4)"> 
    148 无关闭按钮IE 
    149 window.open("aa.htm", "meizz", "fullscreen=7"); 
    150 统一编码/解码 
    151 alert(decodeURIComponent(encodeURIComponent("http://你好.com?as= hehe"))) 
    152 encodeURIComponent对":"、"/"、";" 和 "?"也编码 
    153 表格行指示 
    154 <tr onmouseover="this.bgColor='#f0f0f0'" onmouseout="this.bgColor='#ffffff'"> 
    155 
    156 //各种尺寸 
    157 
    158 s  +=  "\r\n网页可见区域宽:"+  document.body.clientWidth;   
    159 s  +=  "\r\n网页可见区域高:"+  document.body.clientHeight;   
    160 s  +=  "\r\n网页可见区域高:"+  document.body.offsetWeight  +"  (包括边线的宽)";   
    161 s  +=  "\r\n网页可见区域高:"+  document.body.offsetHeight  +"  (包括边线的宽)";   
    162 s  +=  "\r\n网页正文全文宽:"+  document.body.scrollWidth;   
    163 s  +=  "\r\n网页正文全文高:"+  document.body.scrollHeight;   
    164 s  +=  "\r\n网页被卷去的高:"+  document.body.scrollTop;   
    165 s  +=  "\r\n网页被卷去的左:"+  document.body.scrollLeft;   
    166 s  +=  "\r\n网页正文部分上:"+  window.screenTop;   
    167 s  +=  "\r\n网页正文部分左:"+  window.screenLeft;   
    168 s  +=  "\r\n屏幕分辨率的高:"+  window.screen.height;   
    169 s  +=  "\r\n屏幕分辨率的宽:"+  window.screen.width;   
    170 s  +=  "\r\n屏幕可用工作区高度:"+  window.screen.availHeight;   
    171 s  +=  "\r\n屏幕可用工作区宽度:"+  window.screen.availWidth;   
    172 //过滤数字 
    173 
    174 <input type=text onkeypress="return event.keyCode>=48&&event.keyCode<=57||(this.value.indexOf('.')<0?event.keyCode==46:false)" onpaste="return !clipboardData.getData('text').match(/\D/)" ondragenter="return false"> 
    175  
    176 
    177 //特殊用途 
    178 
    179 <input type=button value=导入收藏夹 onclick="window.external.ImportExportFavorites(true,'http://localhost');"> 
    180 <input type=button value=导出收藏夹 onclick="window.external.ImportExportFavorites(false,'http://localhost');"> 
    181 <input type=button value=整理收藏夹 onclick="window.external.ShowBrowserUI('OrganizeFavorites', null)"> 
    182 <input type=button value=语言设置   onclick="window.external.ShowBrowserUI('LanguageDialog', null)"> 
    183 <input type=button value=加入收藏夹 onclick="window.external.AddFavorite('http://www.google.com/', 'google')"> 
    184 <input type=button value=加入到频道 onclick="window.external.addChannel('http://www.google.com/')"> 
    185 <input type=button value=加入到频道 onclick="window.external.showBrowserUI('PrivacySettings',null)"> 
    186  
    187 
    188 //不缓存 
    189 
    190 <META HTTP-EQUIV="pragma" CONTENT="no-cache"> 
    191 <META HTTP-EQUIV="Cache-Control" CONTENT="no-cache, must-revalidate"> 
    192 <META HTTP-EQUIV="expires" CONTENT="0"> 
    193  
    194 
    195  
    196 
    197 
    198 
    199 //正则匹配 
    200  
    201 
    202 匹配中文字符的正则表达式: [\u4e00-\u9fa5] 
    203 匹配双字节字符(包括汉字在内):[^\x00-\xff] 
    204 匹配空行的正则表达式:\n[\s| ]*\r 
    205 匹配HTML标记的正则表达式:/<(.*)>.*<\/\1>|<(.*) \/>/  
    206 匹配首尾空格的正则表达式:(^\s*)|(\s*$)(像vbscript那样的trim函数) 
    207 匹配Email地址的正则表达式:\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* 
    208 匹配网址URL的正则表达式:http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)? 
    209 以下是例子: 
    210 利用正则表达式限制网页表单里的文本框输入内容: 
    211 用正则表达式限制只能输入中文:onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,''))" 
    212 1.用正则表达式限制只能输入全角字符: onkeyup="value=value.replace(/[^\uFF00-\uFFFF]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\uFF00-\uFFFF]/g,''))" 
    213 2.用正则表达式限制只能输入数字:onkeyup="value=value.replace(/[^\d]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))" 
    214 3.用正则表达式限制只能输入数字和英文:onkeyup="value=value.replace(/[\W]/g,'') "onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\d]/g,''))" 
    215 //消除图像工具栏 
    216 
    217 <IMG SRC="mypicture.jpg" HEIGHT="100px" WIDTH="100px" GALLERYIMG="false">  
    218 or 
    219 <head> 
    220 <meta http-equiv="imagetoolbar" content="no"> 
    221 </head> 
    222  
    223 
    224 //无提示关闭 
    225 
    226 
    227 function Close() 
    228 { 
    229  var ua=navigator.userAgent 
    230  var ie=navigator.appName=="Microsoft Internet Explorer"?true:false 
    231  if(ie) 
    232  { 
    233       var IEversion=parseFloat(ua.substring(ua.indexOf("MSIE ")+5,ua.indexOf(";",ua.indexOf("MSIE ")))) 
    234   if(IEversion< 5.5) 
    235   { 
    236    var str  = '<object id=noTipClose classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">' 
    237        str += '<param name="Command" value="Close"></object>'; 
    238        document.body.insertAdjacentHTML("beforeEnd", str); 
    239        document.all.noTipClose.Click(); 
    240   } 
    241       else 
    242   { 
    243        window.opener =null; 
    244        window.close(); 
    245       } 
    246    } 
    247  else 
    248  { 
    249   window.close() 
    250    } 
    251 } 
    252 //取得控件得绝对位置(1) 
    253 
    254 
    255 <script language="javascript">  
    256 function getoffset(e) 
    257 {  
    258  var t=e.offsetTop;  
    259  var l=e.offsetLeft;  
    260  while(e=e.offsetParent) 
    261  {  
    262   t+=e.offsetTop;  
    263   l+=e.offsetLeft;  
    264  }  
    265  var rec = new Array(1); 
    266  rec[0]  = t; 
    267  rec[1] = l; 
    268  return rec 
    269 }  
    270 </script> 
    271 //获得控件的绝对位置(2) 
    272 
    273 oRect = obj.getBoundingClientRect(); 
    274 oRect.left 
    275 oRect. 
    276 //最小化,最大化,关闭 
    277 
    278 <object id=min classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">  
    279 <param name="Command" value="Minimize"></object>  
    280 <object id=max classid="clsid:ADB880A6-D8FF-11CF-9377-00AA003B7A11">  
    281 <param name="Command" value="Maximize"></object>  
    282 <OBJECT id=close classid="clsid:adb880a6-d8ff-11cf-9377-00aa003b7a11">  
    283 <PARAM NAME="Command" value="Close"></OBJECT>  
    284 <input type=button value=最小化 onclick=min.Click()>  
    285 <input type=button value=最大化 onclick=max.Click()>  
    286 <input type=button value=关闭 onclick=close.Click()>  
    287  
    288 
    289  
    290 
    291 
    292 //光标停在文字最后 
    293 
    294  
    295 
    296 <script language="javascript"> 
    297 function cc() 
    298 { 
    299  var e = event.srcElement; 
    300  var r =e.createTextRange(); 
    301  r.moveStart('character',e.value.length); 
    302  r.collapse(true); 
    303  r.select(); 
    304 } 
    305 </script> 
    306 <input type=text name=text1 value="123" onfocus="cc()"> 
    307 //页面进入和退出的特效 
    308 
    309 
    310 进入页面<meta http-equiv="Page-Enter" content="revealTrans(duration=x, transition=y)"> 
    311 推出页面<meta http-equiv="Page-Exit" content="revealTrans(duration=x, transition=y)">  
    312 这个是页面被载入和调出时的一些特效。duration表示特效的持续时间,以秒为单位。transition表示使 
    313 用哪种特效,取值为1-23: 
    314   0 矩形缩小  
    315   1 矩形扩大  
    316   2 圆形缩小 
    317   3 圆形扩大  
    318   4 下到上刷新  
    319   5 上到下刷新 
    320   6 左到右刷新  
    321   7 右到左刷新  
    322   8 竖百叶窗 
    323   9 横百叶窗  
    324   10 错位横百叶窗  
    325   11 错位竖百叶窗 
    326   12 点扩散  
    327   13 左右到中间刷新  
    328   14 中间到左右刷新 
    329   15 中间到上下 
    330   16 上下到中间  
    331   17 右下到左上 
    332   18 右上到左下  
    333   19 左上到右下  
    334   20 左下到右上 
    335   21 横条  
    336   22 竖条  
    337   23  
    338 //网页是否被检索 
    339 
    340 <meta name="ROBOTS" content="属性值"> 
    341   其中属性值有以下一些: 
    342   属性值为"all": 文件将被检索,且页上链接可被查询; 
    343   属性值为"none": 文件不被检索,而且不查询页上的链接; 
    344   属性值为"index": 文件将被检索; 
    345   属性值为"follow": 查询页上的链接; 
    346   属性值为"noindex": 文件不检索,但可被查询链接; 
    347   属性值为"nofollow":  
    348  
    349 
    350 
    351 //打印分页 
    352 
    353 <p  style="page-break-after:always">page1</p>   
    354 <p  style="page-break-after:always">page2</p>   
    355  
    356 
    357 
    358 //设置打印 
    359 
    360 
    361 <object id="factory" style="display:none" viewastext 
    362   classid="clsid:1663ed61-23eb-11d2-b92f-008048fdd814" 
    363   codebase="http://www.meadroid.com/scriptx/ScriptX.cab#Version=5,60,0,360" 
    364 ></object> 
    365 <input type=button value=页面设置 onclick="factory.printing.PageSetup()"> 
    366 <input type=button value=打印预览 onclick="factory.printing.Preview()"> 
    367   
    368 <script language=javascript> 
    369 function window.onload() 
    370 { 
    371    // -- advanced features 
    372    factory.printing.SetMarginMeasure(2) // measure margins in inches 
    373    factory.printing.SetPageRange(false, 1, 3) // need pages from 1 to 3 
    374    factory.printing.printer = "HP DeskJet 870C" 
    375    factory.printing.copies = 2 
    376    factory.printing.collate = true 
    377    factory.printing.paperSize = "A4" 
    378    factory.printing.paperSource = "Manual feed" 
    379    // -- basic features 
    380    factory.printing.header = "居左显示&b居中显示&b居右显示页码,第&p页/共&P页" 
    381    factory.printing.footer = "(自定义页脚)" 
    382    factory.printing.portrait = false 
    383    factory.printing.leftMargin = 0.75 
    384    factory.printing.topMargin = 1.5 
    385    factory.printing.rightMargin = 0.75 
    386    factory.printing.bottomMargin = 1.5 
    387 } 
    388 function Print(frame) { 
    389   factory.printing.Print(true, frame) // print with prompt 
    390 } 
    391 </script> 
    392 <input type=button value="打印本页" onclick="factory.printing.Print(false)"> 
    393 <input type=button value="页面设置" onclick="factory.printing.PageSetup()"> 
    394 <input type=button value="打印预览" onclick="factory.printing.Preview()"><br> 
    395 <a href="http://www.meadroid.com/scriptx/docs/printdoc.htm?static"  target=_blank>具体使用手册,更多信息,点这里</a> 
    396   
    397 //自带的打印预览 
    398 
    399 WebBrowser.ExecWB(1,1) 打开  
    400 Web.ExecWB(2,1) 关闭现在所有的IE窗口,并打开一个新窗口  
    401 Web.ExecWB(4,1) 保存网页  
    402 Web.ExecWB(6,1) 打印  
    403 Web.ExecWB(7,1) 打印预览  
    404 Web.ExecWB(8,1) 打印页面设置  
    405 Web.ExecWB(10,1) 查看页面属性  
    406 Web.ExecWB(15,1) 好像是撤销,有待确认  
    407 Web.ExecWB(17,1) 全选  
    408 Web.ExecWB(22,1) 刷新  
    409 Web.ExecWB(45,1) 关闭窗体无提示  
    410 <style media=print>  
    411 .Noprint{display:none;}<!--用本样式在打印时隐藏非打印项目-->  
    412 .PageNext{page-break-after: always;}<!--控制分页-->  
    413 </style>  
    414 <object  id="WebBrowser"  width=0  height=0  classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">     
    415 </object>     
    416   
    417 <center class="Noprint" > 
    418 <input type=button value=打印 onclick=document.all.WebBrowser.ExecWB(6,1)>  
    419 <input type=button value=直接打印 onclick=document.all.WebBrowser.ExecWB(6,6)>  
    420 <input type=button value=页面设置 onclick=document.all.WebBrowser.ExecWB(8,1)>  
    421 </p>  
    422 <p> <input type=button value=打印预览 onclick=document.all.WebBrowser.ExecWB(7,1)>  
    423 </center> 
    424 //去掉打印时的页眉页脚 
    425 
    426 
    427 <script  language="JavaScript">   
    428 var HKEY_Root,HKEY_Path,HKEY_Key; 
    429 HKEY_Root="HKEY_CURRENT_USER"; 
    430 HKEY_Path="\\Software\\Microsoft\\Internet Explorer\\PageSetup\\"; 
    431 //设置网页打印的页眉页脚为空 
    432 function PageSetup_Null() 
    433 { 
    434  try 
    435  { 
    436          var Wsh=new ActiveXObject("WScript.Shell"); 
    437   HKEY_Key="header"; 
    438   Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); 
    439   HKEY_Key="footer"; 
    440   Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,""); 
    441  } 
    442  catch(e){} 
    443 } 
    444 //设置网页打印的页眉页脚为默认值 
    445 function  PageSetup_Default() 
    446 {   
    447  try 
    448  { 
    449   var Wsh=new ActiveXObject("WScript.Shell"); 
    450   HKEY_Key="header"; 
    451   Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&w&b页码,&p/&P"); 
    452   HKEY_Key="footer"; 
    453   Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&u&b&d"); 
    454  } 
    455  catch(e){} 
    456 } 
    457 </script> 
    458 <input type="button" value="清空页码" onclick=PageSetup_Null()> 
    459 <input type="button" value="恢复页码" onclick=PageSetup_Default()> 
    460 //浏览器验证 
    461 
    462 
    463 function checkBrowser() 
    464 {  
    465    this.ver=navigator.appVersion  
    466    this.dom=document.getElementById?1:0  
    467    this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom)?1:0;  
    468    this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom)?1:0;  
    469    this.ie4=(document.all && !this.dom)?1:0;  
    470    this.ns5=(this.dom && parseInt(this.ver) >= 5) ?1:0;  
    471    this.ns4=(document.layers && !this.dom)?1:0;  
    472    this.mac=(this.ver.indexOf('Mac') > -1) ?1:0;  
    473    this.ope=(navigator.userAgent.indexOf('Opera')>-1);  
    474    this.ie=(this.ie6 || this.ie5 || this.ie4)  
    475    this.ns=(this.ns4 || this.ns5)  
    476    this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns5 || this.ns4 || this.mac || this.ope)  
    477    this.nbw=(!this.bw)  
    478    return this; 
    479 } 
    480 //计算内容宽和高 
    481 
    482 <SCRIPT  language="javascript">   
    483 function  test(obj)   
    484 {   
    485        var  range  =  obj.createTextRange();   
    486        alert("内容区宽度:  "  +  range.boundingWidth     
    487                                                  +  "px\r\n内容区高度:  "  +  range.boundingHeight  +  "px");   
    488               
    489 }   
    490 </SCRIPT>   
    491 <BODY>   
    492 <Textarea id="txt" height="150">sdf</textarea><INPUT  type="button"  value="计算内容宽度"  onClick="test(txt)">   
    493 </BODY> 
    494 //无模式的提示框 
    495 
    496 function modelessAlert(Msg) 
    497 { 
    498    window.showModelessDialog("javascript:alert(\""+escape(Msg)+"\");window.close();","","status:no;resizable:no;help:no;dialogHeight:height:30px;dialogHeight:40px;"); 
    499 } 
    500  
    501 
    502  
    503 
    504  
    505 
    506 
    507 //屏蔽按键 
    508  
    509 
    510 <html> 
    511 <head> 
    512   <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> 
    513   <noscript><meta http-equiv="refresh" content="0;url=about:noscript"></noscript> 
    514   <title>屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键</title> 
    515 </head> 
    516 <body> 
    517 <script language="Javascript"><!-- 
    518   //屏蔽鼠标右键、Ctrl+N、Shift+F10、F11、F5刷新、退格键 
    519   //Author: meizz(梅花雨) 2002-6-18 
    520 function document.oncontextmenu(){event.returnValue=false;}//屏蔽鼠标右键 
    521 function window.onhelp(){return false} //屏蔽F1帮助 
    522 function document.onkeydown() 
    523 { 
    524   if ((window.event.altKey)&& 
    525       ((window.event.keyCode==37)||   //屏蔽 Alt+ 方向键 ← 
    526        (window.event.keyCode==39)))   //屏蔽 Alt+ 方向键 → 
    527   { 
    528      alert("不准你使用ALT+方向键前进或后退网页!"); 
    529      event.returnValue=false; 
    530   } 
    531      /* 注:这还不是真正地屏蔽 Alt+ 方向键, 
    532      因为 Alt+ 方向键弹出警告框时,按住 Alt 键不放, 
    533      用鼠标点掉警告框,这种屏蔽方法就失效了。以后若 
    534      有哪位高手有真正屏蔽 Alt 键的方法,请告知。*/ 
    535   if ((event.keyCode==8)  ||                 //屏蔽退格删除键 
    536       (event.keyCode==116)||                 //屏蔽 F5 刷新键 
    537       (event.ctrlKey && event.keyCode==82)){ //Ctrl + R 
    538      event.keyCode=0; 
    539      event.returnValue=false; 
    540      } 
    541   if (event.keyCode==122){event.keyCode=0;event.returnValue=false;}  //屏蔽F11 
    542   if (event.ctrlKey && event.keyCode==78) event.returnValue=false;   //屏蔽 Ctrl+n 
    543   if (event.shiftKey && event.keyCode==121)event.returnValue=false;  //屏蔽 shift+F10 
    544   if (window.event.srcElement.tagName == "A" && window.event.shiftKey)  
    545       window.event.returnValue = false;             //屏蔽 shift 加鼠标左键新开一网页 
    546   if ((window.event.altKey)&&(window.event.keyCode==115))             //屏蔽Alt+F4 
    547   { 
    548       window.showModelessDialog("about:blank","","dialogWidth:1px;dialogheight:1px"); 
    549       return false; 
    550   } 
    551 } 
    552 </script> 
    553 屏蔽鼠标右键、Ctrl+N、Shift+F10、Alt+F4、F11、F5刷新、退格键 
    554 </body> 
    555 </html> 
    556 //屏蔽打印 
    557 <style> 
    558 @media print{ 
    559 * {display:none} 
    560 } 
    561 </style> 
    562 
    563 //移动的图层,拖动 
    564 
    565 
    566 1.<span style='position:absolute;200;height:200;background:red' onmousedown=MouseDown(this) onmousemove=MouseMove() onmouseup=MouseUp()>meizz</span> 
    567 <script language=javascript> 
    568 var Obj; 
    569 function MouseDown(obj) 
    570 { 
    571   Obj=obj; 
    572   Obj.setCapture(); 
    573   Obj.l=event.x-Obj.style.pixelLeft; 
    574   Obj.t=event.y-Obj.style.pixelTop; 
    575 } 
    576 function MouseMove() 
    577 { 
    578   if(Obj!=null) 
    579   { 
    580     Obj.style.left = event.x-Obj.l; 
    581     Obj.style.top = event.y-Obj.t; 
    582   } 
    583 } 
    584 function MouseUp() 
    585 { 
    586   if(Obj!=null) 
    587   { 
    588     Obj.releaseCapture(); 
    589     Obj=null; 
    590   } 
    591 } 
    592 </script> 
    593 2. 
    594 <div id="myDiv" src="logo.gif" ondrag="doDrag();" onmouseover="this.style.cursor='hand'" style="position:absolute;left=100;top=100;" onmousedown="doMouseDown();"> 
    595 <a href="#" onclick="return false"><h1>wlecome</h1></a> 
    596 </div> 
    597 <script language="JavaScript" type="text/javascript"> 
    598 var orgMouseX; 
    599 var orgMouseY; 
    600 var orgObjX; 
    601 var orgObjY; 
    602 function doDrag() 
    603 { 
    604 var myObject=document.all.myDiv; 
    605 
    606 var x=event.clientX; 
    607 var y=event.clientY; 
    608 myObject.style.left=x-(orgMouseX-orgObjX); 
    609 myObject.style.top=y-(orgMouseY-orgObjY); 
    610   
    611 } 
    612 function doMouseDown() 
    613 { 
    614 orgMouseX=event.clientX; 
    615 orgMouseY=event.clientY; 
    616 orgObjX=parseInt(document.all.myDiv.style.left); 
    617 orgObjY=parseInt(document.all.myDiv.style.top); 
    618 } 
    619 
    620 </script> 
    621   
    622 //文档状态改变 
    623 
    624 
    625 <iframe src="a.html" id="f" name="f" scrolling="no" frameborder=0 marginwidth=0 marginheight=0></iframe> 
    626 <script> 
    627 var doc=window.frames["f"].document; 
    628 function s(){ 
    629  if (doc.readyState=="complete"){ 
    630   document.all.f.style.height=doc.body.scrollHeight 
    631   document.all.f.style.width=doc.body.scrollWidth 
    632  } 
    633 } 
    634 doc.onreadystatechange=s 
    635 </script> 
    636 
    637 //刷新后不变的文本框 
    638 
    639 <HTML> 
    640 <HEAD> 
    641 <META NAME="save" CONTENT="history"> 
    642 <STYLE> 
    643    .sHistory {behavior:url(#default#savehistory);} 
    644 </STYLE> 
    645 </HEAD> 
    646 <BODY> 
    647 <INPUT class=sHistory type=text id=oPersistInput> 
    648 </BODY> 
    649 </HTML> 
    650  
    651 
    652 //访问剪贴板 
    653 
    654 (1)拖拽访问 
    655 event.dataTransfer.setData("URL", oImage.src); 
    656 sImageURL = event.dataTransfer.getData("URL") 
    657 (2)普通访问 
    658 window.clipboardData.setData("Text",oSource.innerText); 
    659 window.clipboardData.getData("Text"); 
    660  
    661 
    662 //操作COOKIE 
    663 
    664 
    665 function SetCookie(sName, sValue) 
    666 { 
    667  document.cookie = sName + "=" + escape(sValue) + "; "; 
    668 } 
    669 function GetCookie(sName) 
    670 { 
    671  var aCookie = document.cookie.split("; "); 
    672  for (var i=0; i < aCookie.length; i++) 
    673  { 
    674    
    675   var aCrumb = aCookie[i].split("="); 
    676   if (sName == aCrumb[0])  
    677   return unescape(aCrumb[1]); 
    678  } 
    679   
    680 } 
    681 function DelCookie(sName) 
    682 { 
    683 document.cookie = sName + "=" + escape(sValue) + "; expires=Fri, 31 Dec 1999 23:59:59 GMT;"; 
    684 } 
    685 //setTimeout增加参数 
    686 
    687 <script> 
    688 var _st = window.setTimeout; 
    689 window.setTimeout = function(fRef, mDelay) { 
    690  if(typeof fRef == 'function'){ 
    691   var argu = Array.prototype.slice.call(arguments,2); 
    692   var f = (function(){ fRef.apply(null, argu); }); 
    693   return _st(f, mDelay); 
    694  } 
    695  return _st(fRef,mDelay); 
    696 } 
    697 function test(x){ 
    698  alert(x); 
    699 } 
    700 window.setTimeout(test,1000,'fason'); 
    701 </script> 
    702 
    703 //自定义的apply,call 
    704 
    705 Function.prototype.apply = function (obj, argu) { 
    706  if (obj) obj.constructor.prototype._caller = this;  
    707  var argus = new Array(); 
    708  for (var i=0;i<argu.length;i++) 
    709   argus[i] = "argu[" + i + "]"; 
    710  var r; 
    711  eval("r = " + (obj ? ("obj._caller(" + argus.join(",") + ");") : ("this(" + argus.join(",") + ");"))); 
    712  return r; 
    713 }; 
    714 Function.prototype.call = function (obj) { 
    715  var argu = new Array(); 
    716  for (var i=1;i<arguments.length;i++) 
    717   argu[i-1] = arguments[i]; 
    718  return this.apply(obj, argu); 
    719 };        
    720 
    721 //下载文件 
    722 
    723 function DownURL(strRemoteURL,strLocalURL) 
    724 { 
    725  try 
    726  { 
    727   var xmlHTTP=new ActiveXObject("Microsoft.XMLHTTP"); 
    728   xmlHTTP.open("Get",strRemoteURL,false); 
    729   xmlHTTP.send(); 
    730   var adodbStream=new ActiveXObject("ADODB.Stream"); 
    731   adodbStream.Type=1;//1=adTypeBinary 
    732   adodbStream.Open(); 
    733   adodbStream.write(xmlHTTP.responseBody); 
    734   adodbStream.SaveToFile(strLocalURL,2); 
    735   adodbStream.Close(); 
    736   adodbStream=null; 
    737   xmlHTTP=null; 
    738    
    739  } 
    740  catch(e) 
    741  { 
    742   window.confirm("下载URL出错!"); 
    743  } 
    744  //window.confirm("下载完成."); 
    745 } 
    746 
    747 //检验连接是否有效 
    748 
    749 function getXML(URL)  
    750 { 
    751  var xmlhttp = new ActiveXObject("microsoft.xmlhttp"); 
    752  xmlhttp.Open("GET",URL, false);  
    753  try 
    754  {  
    755   xmlhttp.Send(); 
    756  } 
    757  catch(e){} 
    758  finally  
    759  { 
    760   var result = xmlhttp.responseText; 
    761   if(result)  
    762   { 
    763    if(xmlhttp.Status==200) 
    764    { 
    765     return(true); 
    766    } 
    767    else  
    768    { 
    769     return(false); 
    770    } 
    771   } 
    772   else  
    773   { 
    774    return(false); 
    775   } 
    776  } 
    777 } 
    778 //POST代替FORM 
    779 
    780 <SCRIPT language="VBScript"> 
    781 Function URLEncoding(vstrIn) 
    782     strReturn = "" 
    783     For i = 1 To Len(vstrIn) 
    784         ThisChr = Mid(vStrIn,i,1) 
    785         If Abs(Asc(ThisChr)) < &HFF Then 
    786             strReturn = strReturn & ThisChr 
    787         Else 
    788             innerCode = Asc(ThisChr) 
    789             If innerCode < 0 Then 
    790                 innerCode = innerCode + &H10000 
    791             End If 
    792             Hight8 = (innerCode  And &HFF00)\ &HFF 
    793             Low8 = innerCode And &HFF 
    794             strReturn = strReturn & "%" & Hex(Hight8) &  "%" & Hex(Low8) 
    795         End If 
    796     Next 
    797     URLEncoding = strReturn 
    798 End Function 
    799 Function bytes2BSTR(vIn) 
    800     strReturn = "" 
    801     For i = 1 To LenB(vIn) 
    802         ThisCharCode = AscB(MidB(vIn,i,1)) 
    803         If ThisCharCode < &H80 Then 
    804             strReturn = strReturn & Chr(ThisCharCode) 
    805         Else 
    806             NextCharCode = AscB(MidB(vIn,i+1,1)) 
    807             strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode)) 
    808             i = i + 1 
    809         End If 
    810     Next 
    811     bytes2BSTR = strReturn 
    812 End Function 
    813 dim strA,oReq 
    814 strA = URLEncoding("submit1=Submit&text1=中文") 
    815 set oReq = CreateObject("MSXML2.XMLHTTP") 
    816 oReq.open "POST","http://ServerName/VDir/TstResult.asp",false 
    817 oReq.setRequestHeader "Content-Length",Len(strA) 
    818 oReq.setRequestHeader "CONTENT-TYPE","application/x-www-form-urlencoded" 
    819 oReq.send strA 
    820 msgbox bytes2BSTR(oReq.responseBody) 
    821 </SCRIPT> 
    822 //readyState是xmlhttp返回数据的进度,0=载入中,1=未初始化,2=已载入,3=运行中,4=完成
    823 
    824  
    825 
    826  
    827 
    828 //组件是否安装 
    829 isComponentInstalled("{6B053A4B-A7EC-4D3D-4567-B8FF8A1A5739}", "componentID")) 
    830 
    831 //检查网页是否存在 
    832 
    833 
    834 function CheckURL(URL) 
    835 { 
    836   var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); 
    837   xmlhttp.Open("GET",URL, false); 
    838   try 
    839   {  
    840     xmlhttp.Send();  
    841     var result = xmlhttp.status; 
    842   } 
    843   catch(e) {return(false); } 
    844   if(result==200) 
    845   {  
    846     return true; 
    847   } 
    848   xmlhttp = null; 
    849   return false; 
    850 } 
    851 //连接数据库 
    852 
    853 
    854 <script language="javascript"> 
    855   //用 JavaScript 写服务器端连接数据库的代码示例 
    856   var conn = new ActiveXObject("ADODB.Connection"); 
    857   conn.Open("Provider=SQLOLEDB.1; Data Source=localhost; User ID=sa; " 
    858     +"Password=; Initial Catalog=pubs"); 
    859   var rs = new ActiveXObject("ADODB.Recordset"); 
    860   var sql="select * from authors"; 
    861   rs.open(sql, conn); 
    862  shtml = "<table width='100%' border=1>"; 
    863  shtml +="<tr bgcolor='#f4f4f4'><td>au_id</td><td>au_lname</td><td>au_fname</td><td>phone</td><td>address</td><td> city</td><td>state</td><td>zip</td></tr>"; 
    864   while(!rs.EOF) 
    865   { 
    866  shtml += "<tr><td>" + rs("au_id") + "</td><td>" + rs("au_lname") + "</td><td>" + rs("au_fname") + "</td><td>" + rs("phone") + "</td><td>" + rs("address") + "</td><td>" + rs("city") + "</td><td>" + rs("state") + "</td><td>" + rs("zip") + "</td></tr>"; 
    867  rs.moveNext; 
    868   } 
    869   shtml += "</table>"; 
    870   document.write(shtml); 
    871   rs.close();  
    872   rs = null;  
    873   conn.close();  
    874   conn = null; 
    875 </script> 
    876 //使用数据岛 
    877 
    878 
    879 <html> 
    880 <body> 
    881 srno:<input type=text datasrc=#xmldate DataFLD=srno size="76"><BR> 
    882 times:<input type=text datasrc=#xmldate DataFLD=times size="76"><BR> 
    883 <input id="first" TYPE=button value="<< 第一条记录" onclick="xmldate.recordset.moveFirst()"> 
    884 <input id="prev" TYPE=button value="<上一条记录" onclick="xmldate.recordset.movePrevious()">   
    885 <input id="next" TYPE=button value="下一条记录>" onclick="xmldate.recordset.moveNext()">   
    886 <input id="last" TYPE=button value="最后一条记录>>" onclick="xmldate.recordset.moveLast()">    
    887 <input id="Add" TYPE=button value="添加新记录" onclick="xmldate.recordset.addNew()">   
    888 
    889 <XML ID="xmldate"> 
    890 <infolist> 
    891 <info ><srno>20041025-01</srno><times>null</times></info> 
    892 <info ><srno>20041101-09</srno><times>2004年10月1日2点22分0秒</times></info> 
    893 </infolist> 
    894 </XML> 
    895 </body> 
    896 </html> 
    897 //获得参数 
    898 
    899 <body> 
    900 <a href="javascript:location.href=location.href + '?a=1&b=2'">search</a> 
    901 <script language="JavaScript"> 
    902 <!-- 
    903 var a = location.search.substr(1); 
    904 if(a.length>0) 
    905 { 
    906  var re = /([^&]*?)\=([^&]*)/g 
    907  var s = a.match(re); 
    908  for(var i= 0;i<s.length;i++) 
    909  { 
    910   alert(s[i]); 
    911   alert(s[i].split("=")[1]); 
    912  } 
    913 } 
    914 //--> 
    915 </script> 
    916 </body> 
    917 //可编辑SELECT 
    918 
    919 <input type=text name=re_name style="100px;height:21px;font-size:10pt;"><span style="18px;border:0px solid red;"><select name="r00" style="margin-left:-100px;118px; background-color:#FFEEEE;" onChange="document.all.re_name.value=this.value;"> 
    920                 <option value="1">11111111<option> 
    921                 <option value="2">222222</option> 
    922                 <option value="3">333333</option> 
    923               </select> 
    924               </span>
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  • 原文地址:https://www.cnblogs.com/cnlove/p/2836784.html
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