[html5] 学习笔记-改良的input元素种类

时间：2023-05-10 14:06:08

在html5中，大幅度增加与改良了input元素的种类，可以简单的使用这些元素来实现之前需要JS脚本来实现的功能。

1、url类型、email类型、date类型、time类型、datetime类型、datatime-local类型、month类型、week类型、number类型、range类型、search类型、Tel类型、color类型

 <!DOCTYPE html>
 <html>
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     <title>g改良的input元素</title>
 </head>
 <body>
     <form>
     <!--url-->
     <input name="url" type="url" value="http://jikexueyuan.com"></input>
     <input type="submit" value="提交"></input>
     <br>
     <!--email-->
     <input name="email" type="email" value="bluebird@qq.com"></input>
     <input type="submit" value="提交"></input>
     </form>
     <br>
     <!--date-->
     <input name="date" type="date" value=""></input>
     <!--time-->
     <br>
     <input name="time" type="time" value="10:00"></input>
     <!--datetime-->
     <br>
     <input name="datetime" type="datetime" value=""></input>
     <!--datetime-local-->
     <br>
     <input name="datetime-local" type="datetime-local" value=""></input>
     <!--month-->
     <br>
     <input name="month" type="month" value="2010-01-01"></input>
     <!--week-->
     <br>
     <input name="week" type="week"></input>
     <!--number-->
     <br>
     <input name="number" type="number" value="15" min="10" max="100" step="5"></input>
     <!--简单的计算器-->
     <br>
     <script>
         function sum(){
             var n1=document.getElementById("num1").valueAsNumber;
             var n2=document.getElementById("num2").valueAsNumber;
             document.getElementById("result").valueAsNumber = n1 + n2;
         }
     </script>
     <form>
         <input type="number" id="num1"></input>
         +
         <input type="number" id="num2"></input>
         =
         <input type="number" id="result" readonly></input>
         <input type="button" value="计算" onclick="sum()"></input>
     </form>
     <!--range滑动条-->
     <br>
     <input name="range" type="range" value="25" min="0" max="100" step="5"></input>
     <!--serachs用于搜索域，比如站点搜索或google搜索-->
     <input type="search"></input>
     <!--tel-->
     <br>
     <input type="tel"></input>
     <!--color-->
     <br>
     <input type="color" onchange="document.body.style.backgroundColor = document.getElementById("currentColor").textContent = this.value;"></input>
         <span id="currentColor"></span>

     <!--output-->
     <script>
         function value_change(){
             var number = document.getElementById("range").value;
             document.getElementById("output").value=number;
         }
     </script>
     <form id="testform">
         <input id="range" type="range" min="0" max"100" step="5" value="25" onchange="value_change()"></input>
         <output id="output">25</output>
     </form>
 </body>
 </html>

2、表单验证

 <body>
     <script>
         function check(){
             var email = document.getElementById("email");
             if (email.value=="") {
                 alert("请输入email");
                 return false;
             }else if(!email.checkValidity()){
                 alert("请输入正确的email地址");
                 return false;
             }
         }
     </script>
     <form id="testform" onsubmit="check()" novalidate="true">
         <label for="email">email</label>
         <input name="email" type="email" id="email"></input>
         <br>
         <input type="submit"></input>
     </form>
 </body>

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