nsmutabledictionary-example-iphone-app-development-basics-in-objective-c/

最新推荐文章于 2025-06-30 20:12:35 发布

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本文通过一个简单的Objective-C程序示例展示了如何使用NSMutableDictionary来设置键值对，并遍历字典中的所有条目。

[url]http://blog.objectgraph.com/index.php/2010/03/20/nsmutabledictionary-example-iphone-app-development-basics-in-objective-c/[/url]

NSMutableDictionary *dict = [[NSMutableDictionary alloc] init];
	[dict setObject:@"John" forKey:@"Firstname"];
	[dict setObject:@"Doe" forKey:@"Lastname"];
	[dict setObject:@"info at objectgraph.com" forKey:@"Email"];

	NSLog(@"%@", dict);

	NSArray *keys = [dict allKeys];

	// values in foreach loop
	for (NSString *key in keys) {
		NSLog(@"%@ is %@",key, [dict objectForKey:key]);
	}