帮我写个function把: 判断输入的是999-9999型的数呀!!!!!

Question

/^\d{3}-\d{4}$/.test(str)
/^\d{3}-\d{4}-\d{4}$/

Answer 1

function CheckInput()
{
var strTest;//要检验的字符串
var rule=/^\d{3}\-\d{4}$/;
                  var rule2=/^\d{3}\-\d{4}\-\d{4}$/; if(strTest.match(rule)==null)
{
alert("格式形如'999-9999'!");
                   }
                  if(strTest.match(rule2)==null)
                  {
                           alert("格式形如'999-9999-9999'!");
                  }
}