94 lines
2.3 KiB
HTML
94 lines
2.3 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<meta name="author" content="flykhan" />
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<meta name="keywords" content="c c++ 物联网" />
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<title>表单数据验证</title>
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<style>
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form {
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width: 300px;
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}
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.row {
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display: flex;
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flex-direction: row;
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flex-wrap: nowrap;
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align-items: center;
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}
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input {
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outline: none;
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padding: 10px 10px;
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margin: 10px;
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}
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.row > label {
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display: inline-block;
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width: 100px;
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text-align: right;
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}
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.input_error {
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color: red;
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border: 1px solid red;
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outline: 1px solid yellow;
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}
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.center {
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/* 水平方向中心位置 */
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justify-content: center;
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}
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</style>
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</head>
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<body>
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<form onsubmit="return validForm(this)">
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<div class="row">
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<label>手机号</label>
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<!-- onfocus 当标签获取到焦点时，调用的处理程序 -->
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<input
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onfocus="this.className='';"
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name="phone"
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placeholder="请输入手机号"
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/>
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</div>
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<div class="row">
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<label>口令</label>
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<input onfocus="this.className='';" name="pwd" type="password" />
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</div>
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<div class="row">
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<label>确认口令</label>
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<input onfocus="this.className='';" name="pwd2" type="password" />
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</div>
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<div class="row center">
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<button>登录</button>
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</div>
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</form>
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<script>
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function validForm(form) {
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console.log(form.phone.value);
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let hasError = false;
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if (!/1[3-9]\d{9}/.test(form.phone.value)) {
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form.phone.className = "input_error";
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hasError = true; // 有错
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}
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// 验证口令：有字母数字组成的至少8位的字符串
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if (!/[a-zA-Z][a-zA-Z0-9]{7,}/.test(form.pwd.value)) {
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form.pwd.className = "input_error";
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hasError = true; // 有错
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}
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// 验证两次口令是否相等
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if (form.pwd.value != form.pwd2.value) {
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form.pwd2.className = "input_error";
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hasError = true; // 有错
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}
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console.log(form.pwd.value);
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console.log(form.pwd2.value);
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return false;
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}
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</script>
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</body>
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</html>
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