unterminated string literal 解决方法

最近很长一段时间都在想办法处理Ajax跨域的问题，远程的数据取到了，可就是老是解析不了，一解析就报unterminated string literal

//resultString = resultString.replace("\n\r", "<br>  ");//这句会报错，去掉
 resultString = resultString.replace("\r\n", "<br>  ");//这才是正确的！
 resultString= resultString.replace("\t", "    ");
 resultString =resultString.replace(" ", " ");             
 //resultString=resultString.replace("\"", "\\"+"\"");//如果原文含有双引号，这一句最关键！！！！！！

再补充一些：

resultString =resultString.replace("<", "<"); 
 resultString =resultString.replace(">", ">"); 
 resultString =resultString.replace("&", "&"); 
 resultString=resultString.replace("\n\n","");
 resultString = resultString.replace("\"","\\\\\"");
 resultString = resultString.replace("\n", "");