特殊字符替换 > < " ' &

function toTXT(str){
        var RexStr = /\<|\>|\"|\‘|\&/g
        str = str.replace(RexStr,
            function(MatchStr){
                switch(MatchStr){
                    case "<":
                        return "& lt;";
                        break;
                    case ">":
                        return "& gt;";
                        break;
                    case "\"":
                        return "& quot;";
                        break;
                    case "‘":
                        return "& #39;";
                        break;
                    case "&":
                        return "& amp;";
                        break;
                    default :
                        break;
                }
            }
        )
        return str;
    }

特殊字符替换 > < " ' &

原文：http://www.cnblogs.com/yqlwl66/p/4279940.html