js正则表达式匹配不能出现%号、单引号、双引号、?号

JavaScript015

js正则表达式匹配不能出现%号、单引号、双引号、?号,第1张

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<HEAD>

<TITLE>New Document </TITLE>

<META NAME="Generator" CONTENT="EditPlus">

<META NAME="Author" CONTENT="">

<META NAME="Keywords" CONTENT="">

<META NAME="Description" CONTENT="">

<script language="javascript">

function regexp_test(input){

var reg=/^(?!.*[%\'\"?])/g

alert(reg.test(input))

}

</script>

</HEAD>

<BODY>

<input type="textbox" id="txt1" name="txt1"/>

<input type="button" id="btn1" name="btn1" value="Click" onclick="javascript:regexp_test(txt1.value)"/>

</BODY>

</HTML>

工作中经常遇到字符串中含有"",由于js动态创建div元素,如果title中含有"",就会出现莫名的错误,由此记录下此bug。 var question =  是否经常感到"压力"或其他。 var newQuestion = question.replace(/\"/g, "-")   //把 双引号用-代替  ,当然也可以""代替,表示去除。//检测某字符串中是否包含特殊字符 function special( str ){ var special = RegExp(/[(\ )(\~)(\!)(\@)(\#) (\$)(\%)(\^)(\&)(\*)(\()(\))(\-)(\_)(\+)(\=) (\[)(\])(\{)(\})(\|)(\\)(\)(\:)(\')(\")(\,)(\.)(\/) (\<)(\>)(\?)(\)]+/) return ( special.test(str) ) } 返回true说明有特殊符号。