摘要: //判断字符串是否为空 #define NULLString(string) ([string isEqualToString:@""] || (string == nil) || [string isEqualToString:@""] || [string isKindOfClass:[NSNull class]]) 阅读全文
posted @ 2016-06-30 15:27 牵着蜗牛走的我 阅读(278) 评论(0) 推荐(0)