zoukankan html css js c++ java

javascript 路径读取

//获取当前文件全路径

alert(window.location.href);

alert(window.location);

alert(location.href);

alert(parent.location.href);

alert(top.location.href);

alert(document.location.href);

alert(document.URL);

</script>

//获取当前目录方法

//方法一

var str = location.href;

var arr = str.split("/");

delete arr[arr.length-1];

var dir = arr.join("/");

alert(dir);

//方法二

alert(location.href.substring(0,location.href.lastIndexOf('/')));

</script>

//获取当前文件名

var filename=location.href;

filename=filename.substr(filename.lastIndexOf('/')+1);

alert(filename);

</script>

chrome 获取 input文件的路径

1. 加密的的blob

<input type="file" id="files" name="files[]"  multiple  />
<output id="list"></output>
<input type="button" onclick="onchange1()" value="button" />

<script>
function onchange1(){
    //alert(document.getElementById('files').value);
    var f = window.URL.createObjectURL(document.getElementById('files').files[0]);
    alert(f);
}
</script>

获取项目路径

<!DOCTYPE html>
<html lang='en'>
    <head>
    <title>read</title>
    <meta charset='utf-8' >
    </head>
    <body>
        <form action="#" onsubmit="return savefile(this);">
        <!-- 文本类型为txt 切换回文本框快捷键为Alt+z -->
        <textarea name="txt" title=" Text edit area - Alt+Z " accesskey="z" rows="10" cols="80">123</textarea>
        <div>
        <!-- 保存文本快捷键为Alt+s -->
        <!-- 把鼠标移动到元素上面，就会显示title的内容 -->
            <input title=" Save - Alt+S " class="key" accesskey="s" type="submit" value=" Save ">
            
            <label title=" Filename - Alt+A " for="filename">As</label>
            <input name="filename" class="it" id="filename" accesskey="a" type="text" size="40" value="D:MazeSet1">
            <select name="ext" title=" Extension ">
                <option value="iso-8859-1">.html</option>
                <!-- selected 表示没人选择项 -->
                <option selected="selected" value="utf-8">.txt</option>
            </select>
            <input title=" Remove null bytes - Alt+U " class="key" accesskey="u" onclick="this.form.elements.txt.value = unnull( this.form.elements.txt.value );" type="button" value=" Unnull ">
            <input title=" Reset the form to its initial state - Alt+R " class="key" accesskey="r" type="reset" value=" Reset ">
        </div>
    <input type="file" id="files" name="files[]"  multiple  />
<output id="list"></output>
<input type="button" onclick="onchange1()" value="button" />
<script>
function getContextPath(){   
                var pathName = document.location.pathname;   
                var index = pathName.substr(1).indexOf("/");   
                var result = pathName.substr(0,index+1);   
                alert(pathName);
                return result;   
            } 
            getContextPath();
  
</script>
    </body>
</html>

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 转：用函数式编程技术编写优美的 JavaScript

原文地址：https://www.cnblogs.com/jiangfeilong/p/10733617.html