摘要: NSString *str1 = @"a string"; NSString *str2 = [[NSString alloc] init]; str2 = @"a string"; [str2 release]; NSString *str3 = [[NSString... 阅读全文
posted @ 2014-05-02 00:39 ookamir82 阅读(151) 评论(0) 推荐(0)