https://c.runoob.com/front-end/854 //正则表达式在线测试 | 菜鸟工具

 

//版本号验证 V**.**.**
    1.^([V]+[1-9]{1}[0-9]{0,2})+(\.[0-9]{2})+(\.[0-9]{2})$
    2.  
        version: {
            pattern: /^([V])+([1-9]\d|[1-9])(.([1-9]\d|\d)){2}$/,
            message: '版本格式错误',
            trigger: ['blur', 'change']
         },