轉(zhuǎn)載自：http://my.oschina.net/wangdk/blog/165554

NSURL *url = [NSURL URLWithString:@"http://www.baidu.com/searchid=1"];
    
NSLog(@"scheme:%@", [url scheme]); //協(xié)議 http

NSLog(@"host:%@", [url host]);     //域名 www.baidu.com
    
NSLog(@"absoluteString:%@", [url absoluteString]); //完整的url字符串 http://www.baidu.com:8080/search?id=1
    
NSLog(@"relativePath: %@", [url relativePath]); //相對路徑 search
   
NSLog(@"port :%@", [url port]);  // 端口 8080
 
NSLog(@"path: %@", [url path]);  // 路徑 search

NSLog(@"pathComponents:%@", [url pathComponents]); // search
    
NSLog(@"Query:%@", [url query]);  //參數(shù) id=1