vue+element表单校验几要素：
（1）圈起来的地方必须有

（2）校验规则

（3）提交表单验证拦截

常用的校验规则：

rules: {
		  creditCode: [{ required: true, message: '请输入企业信用代码', trigger: 'blur' },
            { min: 1, max: 50,message: '长度在 1 到 100 个字符', trigger: 'blur' },
            { pattern:/^[A-Za-z0-9]+$/, message: '只能输入数字、字母', trigger: 'blur'}],
          loginName: [{ required: true, message: '请输入单位全称', trigger: 'blur' },
            { min: 1, max: 50,message: '长度在 1 到 100 个字符', trigger: 'blur' },
            { pattern:/^[a-zA-Z0-9\u4e00-\u9fa5()（）]+$/, message: '只能输入汉字、数字、字     母、括号', trigger: 'blur'}],
          contactsPhone: [{ required: true, message: '请输入电话', trigger: 'blur,change' },
            { pattern:/^[0-9]*$/, message: '请输入正确的电话', trigger: 'blur,change'}],
          contactsMobilePhone: [
            { required: true, message: '请输入手机号码', trigger: 'blur' },
            { pattern:/^1[12345789]\d{9}$/, message: '请输入正确的手机号码'}],
          contactsEmail: [
            { required: true, message: '请填写E-mail', trigger: 'blur,change' },
            { type: 'email', message: '请输入正确的E-mail', trigger: 'blur,change' }],
          registerMoney:[ { required: true, message: '请输入注册资金', trigger: 'blur' },
            { min: 1, max: 10,message: '长度在 1 到 10 个字符', trigger: 'blur' },
            { pattern:/^\d+(\.\d+)?$/, message: '请输入正确的数字', trigger: 'blur' }],
          password: [{ required: true, message: '请输入密码', trigger: 'blur' },
            {pattern: /^(\w){6,20}$/, message: '只能输入6-20个字母、数字、下划线'}],
          checkpass: [{ required: true, message: '请再次输入密码', trigger: 'blur' },
            { validator: validatePass} ]
        }
			不能为NULL且字数限制1-80：/^[\s|\S]{1,80}$/