js使用正则校验邮箱格式是否正确 const emailRegExp = /^([a-zA-Z0-9_\.-]+)@([\da-zA-Z\.-]+)\.([a-zA-Z\.]{2,6})$/ let email = '182453' let email1 = '182453@qq.com' console.log(email, emailRegExp.test(email)) // 182453 false console.log(email1, emailRegExp.test(email1)) // 182453@qq.com true