#import <Foundation/Foundation.h>
int main(int argc, char* argv[]) {
NSURL *url=[NSURL URLWithString:@"http://www.baidu.com"];
NSURLRequest *request=[NSURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:nil];
printf("%s","Hello world!2");
return 0;
}