摘要: 深.浅拷贝copy mutableCopy NSStringNSString *string = @"汉斯哈哈哈";// 没有产生新对象NSString *copyString = [string copy];// 产生新对象NSMutableString *mutableCopyString = ... 阅读全文
posted @ 2015-09-09 09:34 _Solo 阅读(348) 评论(0) 推荐(0)