IOS把url中含有的中文字符转化为UTF8编码方法

//预留参数的网址 NSString *baseUrlString = @"http://lolbox.duowan.com/phone/apiCheckUser.php?action=getPlayersInfo&serverName=%@&target=%@";

NSString *paramServer = @"电信十四"; 

NSString *paramName = @"蛋壳儿"; //合成新的网址 

NSString *urlString = [NSString stringWithFormat:baseUrlString,paramServer,paramName]; //将网址转化为UTF8编码 

NSString *urlStringUTF8 = [urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];