正则- 预定义类 验证座机号码的规则

   <script>

        // 预定义类  

        // 验证座机号码的规则  两种格式 010-12345678  或者 0530-1234567

        // var reg = /^[d]{3,4}[-][d]{7,8}$/;

        // var reg = /^d{3}-d{8}|d{4}-d{7}$/; 

        var reg = /d{3,4}-d{7,8}/;

        console.log(reg.test('010-12345678')); // true

        console.log(reg.test('0530-1234567')); // true

        console.log(reg.test('0530--1234567223')); //false

    </script>