Click on the refresh preview button or the preview image to refresh it.
单击RefreshPreview按钮或预览图像来刷新它。
Also helpful to me was a discussion of the depth of field preview button, something I had long ignored.
里面关于景深预览按钮的叙述给了我很大帮助，这点我之前一直没注意到。
Optionally, you can enter the URL of an image file and click on a "Preview" button to verify that you got it right.
如果愿意，您可以输入一个图像文件的URL并单击“预览”按钮来检验是否一切已经就绪。
If you are trying to use the "preview" button, that might need IIS to be installed.
如果你想使用“预览”按钮，这可能需要安装IIS。
If you are trying to use the "preview" button, that might need IIS to be installed.
如果你想使用“预览”按钮，这可能需要安装IIS。
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