AAAA block

[self AAAA:^(BOOL isSuccessed, id userInfo, NSString *errorMsg) {

NSLog(@"AAAA: %d, userInfo: %@ errorMsg: %@", isSuccessed, userInfo, errorMsg);

}];

-(void)AAAA:(void(^)(BOOL isSuccessed,id userInfo,NSString *errorMsg))callback

{

__block NSMutableDictionary *_info = [@{} mutableCopy];

[self a001:

^(BOOL isSuccessed, id userInfo, NSString *errorMsg) {

NSLog(@"a001");

if (isSuccessed) {

[_info setObject:userInfo forKey:@"001info"];

}

else

{

[_info setObject:errorMsg forKey:@"001info"];

}

[self a002:^(BOOL isSuccessed, id userInfo, NSString *errorMsg) {

NSLog(@"a002");

if (isSuccessed) {

[_info setObject:userInfo forKey:@"002info"];

}

else

{

[_info setObject:errorMsg forKey:@"002info"];

}

[self a003:^(BOOL isSuccessed, id userInfo, NSString *errorMsg) {

NSLog(@"a003");

if (isSuccessed) {

[_info setObject:userInfo forKey:@"003info"];

}

else

{

[_info setObject:errorMsg forKey:@"003info"];

}

if (callback) {

callback(YES,@"userInfo", @"errorMsg");

}

}];

}];

}];

}

-(void)a001:(void(^)(BOOL isSuccessed,id userInfo,NSString *errorMsg))callback

{

NSLog(@"a001 inner");

if (callback) {

callback(YES,@"userInfo", @"errorMsg");

}

}

-(void)a002:(void(^)(BOOL isSuccessed,id userInfo,NSString *errorMsg))callback

{

NSLog(@"a002 inner");

if (callback) {

callback(YES,@"userInfo", @"errorMsg");

}

}

-(void)a003:(void(^)(BOOL isSuccessed,id userInfo,NSString *errorMsg))callback

{

NSLog(@"a003 inner");

if (callback) {

callback(NO,@"userInfo", @"errorMsg");

}

}