代码是什么?

1楼 @tinyfool

- (NSString *)stringFormDict:(NSDictionary*)dict
{
 NSMutableString *str = [NSMutableString string];
 NSArray *keys = [dict allKeys];
 for (NSString *key in keys) {
 if ([[dict objectForKey:key] isKindOfClass:[NSDictionary class]]) {
 id obj = [dict objectForKey:key];
 [str appendFormat:@"n%@: %@",key,[self stringFormDict:obj]];
 }else if ([[dict objectForKey:key] isKindOfClass:[NSArray class]]){
 [str appendFormat:@"n%@:",key];
 for (id obj in [dict objectForKey:key]) {
 [str appendFormat:@"n%@",[self stringFormDict:obj]];
 }
 }else{
 [str appendFormat:@"n%@: %@",key,[dict objectForKey:key]];
 }
 }
 return str;
}

2楼 @Chenkite 加个断点,显然你的dict是个array,检查下吧

明显是json数据源的问题