小编use*_*472的帖子

朋友您好,我想比较xcode中的两个网址(目标c)怎么可能？

-(IBAction) download{
NSURL *url1 = [NSURL URLWithString:@"http://www.google.com/images?hl=en&q=flowers&bav=on.1,or.&um=1&ie=UTF-8&source=og&sa=N&tab=wi&biw=1512&bih=677"];
NSURL *url2 = [NSURL URLWithString:@"http://www.google.com/imgres?imgurl=http://www.missouriplants.com/Yellowopp/Helianthus_divaricatus_flowers.jpg&imgrefurl=http://www.missouriplants.com/Yellowopp/Helianthus_divaricatus_page.html&usg=__W-J2oEuDpbxhlU4plpC3JHP3wU0=&h=449&w=450&sz=41&hl=en&start=0&zoom=1&tbnid=axuO9VsiGsWlCM:&tbnh=131&tbnw=134&ei=h9tsTebwLc3irAeW1Kz7Bg&prev=/images%3Fq%3Dflowers%26um%3D1%26hl%3Den%26sa%3DN%26biw%3D1512%26bih%3D677%26tbs%3Disch:1&um=1&itbs=1&iact=rc&dur=426&oei=h9tsTebwLc3irAeW1Kz7Bg&page=1&ndsp=33&ved=1t:429,r:0,s:0&tx=57&ty=98"]; 
url = [webView.request URL];    
NSLog(@"urlrecieved  .............................. %@", url);
NSLog(@"urlrecieved 1 ............................. %@", url1);
NSLog(@"urlrecieved  2.............................. %@", url2);

if([url isEqualToString:url1])  
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"warning" message:@"select an image" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil];
    [alert show];
    [alert release];
}
else if([url isEqualToString:url2])
{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"warning" message:@"select an image" delegate:nil cancelButtonTitle:@"ok" otherButtonTitles:nil];
    [alert show];
    [alert release];
}   
else
{       
NSLog(@"Downloading...");
NSLog(@"url recieved: %@", url);
UIImage *image …