1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta charset="UTF-8"> 5 <title></title> 6 <style> 7 8 form { 9 500px; 10 height: 500px; 11 position: absolute; 12 top: 50%; 13 left: 50%; 14 margin-left: -250px; 15 margin-top: -250px; 16 } 17 18 input[type="text"], input[type="password"] { 19 outline: medium; 20 400px; 21 height: 40px; 22 margin: 20px 50px; 23 text-indent: 1em; 24 } 25 26 input[type="submit"] { 27 display: block; 28 300px; 29 margin-left: 100px; 30 margin-top: 20px; 31 background-color: #f50; 32 color: #fff; 33 border: none; 34 height: 40px; 35 border-radius: 10px; 36 } 37 38 label { 39 margin: 0 50px; 40 } 41 </style> 42 </head> 43 <body> 44 <form class="form" action=""> 45 <input type="text" id="zhanghao" placeholder="请输入账号" /> 46 <input type="password" id='pass' placeholder="请输入密码" /> 47 <label for="bc"><input id="bc" type="radio" name="bc" value="1" />保存</label> 48 <label for="bbc"><input type="radio" id="bbc" name="bc" value="0" />不保存</label> 49 <input type="submit" value="确定" /> 50 </form> 51 52 53 <script type="text/javascript"> 54 var bc = document.querySelector("#bc"); 55 var bbc = document.querySelector("#bbc"); 56 var form = document.querySelector(".form"); 57 var zhanghao = document.querySelector("#zhanghao"); 58 var pass = document.querySelector("#pass"); 59 if (typeof (Storage) !== "undefined") { 60 if (localStorage.zhanghao_strorage && localStorage.pass_strorage && localStorage.bc_strorage) { 61 zhanghao.value = localStorage.zhanghao_strorage; 62 pass.value = localStorage.pass_strorage; 63 bc.setAttribute("checked", "checked") 64 } 65 } else { 66 // 抱歉! 不支持 web 存储。 67 } 68 form.onsubmit = function () { 69 if (typeof (Storage) !== "undefined") { 70 if (bc.checked) { 71 console.log("保存") 72 var zhanghao_val = zhanghao.value; 73 var pass_val = pass.value; 74 localStorage.setItem("zhanghao_strorage", zhanghao_val); 75 localStorage.setItem("pass_strorage", pass_val); 76 localStorage.setItem("bc_strorage", "bc"); 77 } else { 78 localStorage.clear();//移除所有； 79 } 80 } else { 81 // 抱歉! 不支持 web 存储。 82 } 83 } 84 </script> 85 </body> 86 </html>