ios開發nsdictionary怎麽轉換為nsmutabledictionary

妳可以新建壹個可變的字典,然後把不可變的字典裝進去.

NSDictionary *dic = [NSDictionary dictionaryWithObject:@"123" forKey:@"321"];

NSMutableDictionary *newdic = [NSMutableDictionary dictionaryWithDictionary:dic];