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Image does not update when file name remains the same in XCode 3.1.2

在XCode 3.1.2中，当文件名保持不变时，图像不会更新的问题可能是由于缓存导致的。XCode会缓存图像以提高性能，但有时候这会导致图像不会及时更新。

解决这个问题的方法是清除XCode的缓存。可以按照以下步骤进行操作：

在XCode中，选择菜单栏的"Product"（产品）选项。
在下拉菜单中，选择"Clean"（清理）选项。这将清除项目的构建缓存。
如果问题仍然存在，可以尝试删除Derived Data（派生数据）文件夹。Derived Data是XCode生成的中间文件存放的位置，删除它可以清除所有缓存文件。可以按照以下步骤进行操作：
- 在XCode中，选择菜单栏的"XCode"选项。
- 在下拉菜单中，选择"Preferences"（首选项）选项。
- 在弹出的窗口中，选择"Locations"（位置）选项卡。
- 在Derived Data的行中，点击右侧的小箭头图标，打开Derived Data文件夹所在的位置。
- 在Finder中，删除Derived Data文件夹。
删除缓存后，重新编译和运行项目，应该能够看到更新后的图像。

关于这个问题，可以参考腾讯云的产品介绍链接地址：腾讯云XCode开发工具。腾讯云XCode开发工具提供了一站式的开发环境，可以帮助开发者更高效地进行iOS应用开发和调试。

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