//use function of indexOf //For example <script language="javascript"> function IsInclude(str1, str2){ var s = str1.indexOf(str2); if(s==-1){ return false; }else{ return true; } } function window.onload(){ alert(IsInclude("A;B;C;D;E;F;", "E")) } </script>
//For example
<script language="javascript">
function IsInclude(str1, str2){
var s = str1.indexOf(str2);
if(s==-1){
return false;
}else{
return true;
}
}
function window.onload(){
alert(IsInclude("A;B;C;D;E;F;", "E"))
}
</script>
{
存在
}