iOS - UTC 格式转字符串

- (NSString *)utcToString:(NSString *)utc {
    
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZ"];
    
    NSDate *dateFormatted = [dateFormatter dateFromString:utc];
    
    [dateFormatter setDateFormat:@"yyyy/MM/dd HH:mm:ss"];
    NSString *dateString = [dateFormatter stringFromDate:dateFormatted];
    
    return dateString;
}