榪斿洖涓涓?Boolean 鍊鹼紝瀹冩寚鍑哄湪琚煡鎵劇殑瀛楃涓蹭腑鏄惁瀛樺湪妯″紡銆?/P>
rgexp.test(str)
鍙傛暟
rgexp
蹇呴夐」銆傚寘鍚鍒欒〃杈懼紡妯″紡鎴栧彲鐢ㄦ爣蹇楃殑姝ｅ垯琛ㄨ揪寮?/B>瀵硅薄銆?/P>
str
蹇呴夐」銆傝鍦ㄥ叾涓婃祴璇曟煡鎵劇殑瀛楃涓層?/P>
璇存槑
test 鏂規硶媯鏌ュ湪瀛楃涓蹭腑鏄惁瀛樺湪涓涓ā寮忥紝濡傛灉瀛樺湪鍒欒繑鍥?true錛屽惁鍒欏氨榪斿洖 false銆?
鍏ㄥ眬 RegExp 瀵硅薄鐨勫睘鎬т笉鐢?test 鏂規硶鏉ヤ慨鏀廣?/P>
紺轟緥
涓嬮潰鐨勪緥瀛愪婦渚嬭鏄庝簡 test 鏂規硶鐨勭敤娉曪細
<script language=jscript>function TestDemo(){ try
{
var re="abc"
var s=/a/ //榪欓噷璁炬鍒欒〃杈懼紡
alert(s.test(re)) //濡傛灉鍖呭惈鍒欒繑鍥炵湡
}
catch(e)
{
alert("err")
}
}TestDemo()
</script>]]>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<script>
//濡備竴涓枃鏈澶卞幓鐒︾偣鏃訛紝鍒ゆ柇杈撳叆鐨勫煎彧鑳戒負鏁板瓧
function isNumber(){
isNum = /^[0-9]*$/;
alert(isNum.test(Form1.InputBox.value));
}
</script>
<BODY>
<FORM name="Form1" METHOD=POST ACTION="">
<INPUT TYPE="text" NAME="InputBox" value="" onblur="isNumber()">
</FORM>
</BODY>
</HTML>
]]>