NSHTTPURLResponse * responses = (NSHTTPURLResponse *)response; //或者
NSLog(@"%ld",(long)responses.statusCode);
if (responses.statusCode == 401) {
//自己想要进行的操作
}else if(responses.statusCode == 502){
//自己想要进行的操作
}
NSHTTPURLResponse * responses = (NSHTTPURLResponse *)response; //或者
NSLog(@"%ld",(long)responses.statusCode);
if (responses.statusCode == 401) {
//自己想要进行的操作
}else if(responses.statusCode == 502){
//自己想要进行的操作
}