<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
//验证是否是一个有效数字
var reg=/^[+-]?(\d|[1-9]\d+)(\.\d+)?$/
console.log(reg.test('0.1'));
console.log(reg.test('1$989'));
//验证一个手机号
var reg=/^1[3578]\d{9}$/
console.log(reg.test('13939394959'));
console.log(reg.test('18515150044'));
//验证一个手机号
var reg=/^1[34578]\d{9}/;
console.log(reg.test('15509291341'));
//验证是否是一个有效数字
var reg=/^[+-]?(\d|[1-9]\d+)(\.\d+)?$/;
console.log(reg.test('0.1'));
console.log(reg.test(1111234));
//验证是否是一个邮箱
var reg=/^\w+@[a-zA-Z0-9]{2,10}\.(com|cn)$/;
console.log(reg.test('1286141877@qq.com'))
console.log(reg.test('1286141877@163.cn'))
//匹配一个汉字的范围[\u4e00-\u9fa5]
var str='狮子王';
var reg=/^[\u4e00-\u9fa5]{2,}$/
console.log(reg.test(str));
//汉字姓名正则
var reg=/^[\u4e00-\u9fa5]{2,}(\.[\u4e00-\u9fa5]+)?$/
console.log(reg.test('张卫健.爱新觉罗'))
console.log(reg.test('兔子'))
</script>
</body>
</html>
