Object C学习笔记13-Dictionary

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NSDictionary *dic=[NSDictionary dictionaryWithObject:@"hechen" forKey:@"name"];

NSDictionary *dic1=[NSDictionary dictionaryWithObjectsAndKeys:@"hechen",@"name",@"25",@"age", nil];

NSDictionary *dic2=[[NSDictionary alloc] init];

NSLog(@"%d",[dic count]);

NSLog(@"%d",[dic1 count]);

NSLog(@"%d",[dic2 count]);

复制代码

NSDictionary *dic=[NSDictionary dictionaryWithObject:@"hechen" forKey:@"name"];

NSDictionary *dic1=[NSDictionary dictionaryWithObjectsAndKeys:@"hechen",@"name",@"25",@"age", nil];

NSDictionary *dic2=[[NSDictionary alloc] init];

NSLog(@"%d",[dic count]);

NSLog(@"%d",[dic1 count]);

NSLog(@"%d",[dic2 count]);

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