代码如下:function CheckForm2() { //mac地址正则表达式 var reg_name=/[A-F\d]{2}:[A-F\d]{2}:[A-F\d]{2}:[A-F\d]{2}:[A-F\d]{2}:[A-F\d]{2}/; if(!reg_name.test(document.form2.mac.value)){ alert(“mac地址格式不正确！mac地址格式为00:24:21:19:BD:E4”); document.form2.mac.focus(); retur
