NSString *urlString = [NSString stringWithFormat:@"http://www.baidu.com/search?id=1"];
NSURL __unused *url = [NSURL URLWithString:urlString];
NSLog(@"协议===%@ ",[url scheme]);// 协议
NSLog(@"域名==%@ ",[url host]);// 域名
NSLog(@"完整的url字符串==%@ ",[url absoluteString]);//完整的url字符串
NSLog(@"relativePath: %@", [url relativePath]); //相对路径 search
NSLog(@"port :%@", [url port]); // 端口
NSLog(@"path: %@", [url path]); // 路径 search
NSLog(@"pathComponents:%@", [url pathComponents]); // search
NSLog(@"Query:%@", [url query]); //参数 id=1
11:03:22.145 ExerciseCopyRetain[1141:29782] 协议===http
11:03:22.146 ExerciseCopyRetain[1141:29782] 域名==www.baidu.com
11:03:22.146 ExerciseCopyRetain[1141:29782] 完整的url字符串==http://www.baidu.com/search?id=1
11:03:22.146 ExerciseCopyRetain[1141:29782] relativePath: /search
11:03:22.146 ExerciseCopyRetain[1141:29782] port :(null)
11:03:22.147 ExerciseCopyRetain[1141:29782] path: /search
11:03:22.147 ExerciseCopyRetain[1141:29782] pathComponents:(
"/",
search
)
11:03:22.147 ExerciseCopyRetain[1141:29782] Query:id=1