html 怎么样输出多个转义子字符

asp用Server.HTMLEncode

<%response.write(Server.HTMLEncode("The image tag: <img>"))%>

javascript 用正则表达式进行转换处理

var HtmlUtil = {

/*1.用正则表达式实现html转码*/

htmlEncodeByRegExp:function (str){

var s = ""

if(str.length == 0) return ""

s = str.replace(/&/g,"&")

s = s.replace(/</g,"<")

s = s.replace(/>/g,">")

s = s.replace(/ /g," ")

s = s.replace(/\'/g,"'")

s = s.replace(/\"/g,""")

return s

},

/*2.用正则表达式实现html解码*/

htmlDecodeByRegExp:function (str){

var s = ""

if(str.length == 0) return ""

s = str.replace(/&/g,"&")

s = s.replace(/</g,"<")

s = s.replace(/>/g,">")

s = s.replace(/ /g," ")

s = s.replace(/'/g,"\'")

s = s.replace(/"/g,"\"")

return s

}

}

var html = '<div><p data-text-id="0" style="position:absolute">在 这 里 输 入 内 容</p></div>'

var text = html.replace(/\s+([^<>]+)(?=<)/g, function (match) { return match.replace(/\s+/g, '&nbsp') })

使用正则表达式即可解决； 例如转义字符\r\n 就只需要如下 *** 作即可： String str = "\r\n"str = str.replaceAll("\r\n","\\r\\n")

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