可变
创建可变字典
NSMutableDictionary *dict = [NSMutableDictionary dictionary];NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithObjectsAndKeys:
@"value1", @"key1",
@"value2", @"key2", nil];常用操作
[dict setObject:@"newValue" forKey:@"newKey"];NSMutableDictionary *dict = [NSMutableDictionary dictionary];
[dict setObject:@"Objective-C" forKey:@"language"];
NSLog(@"%@", dict); // 输出:{ language = "Objective-C"; }示例
注意事项
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