本文介绍如何使用iPhone SDK为iOS应用程序图标添加或移除数字徽章，通过简单代码实现徽章显示及隐藏功能。
The badge must be a integer.
[UIApplication sharedApplication].applicationIconBadgeNumber = 2;
To remove the badge just set it as a 0
[UIApplication sharedApplication].applicationIconBadgeNumber = 0;
To add a badge that displays on top of your application icon using the iPhone SDK add the following line in your code
The badge must be a integer.
To remove the badge just set it as a 0
The badge must be a integer.
To remove the badge just set it as a 0
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