用QT designer 編輯ui界面后保存， 彈出 This file contains top level spacers. They will not be saved.Perhaps you forgot to create a layout 提示框！ 要怎么處理？
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認(rèn)證高級(jí)PHP講師
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As mentioned here, spacer cannot be placed on the top level. If you do something like this, the above error will be reported. 
Spacer can only be placed in Layout. If you do something like this, it can be saved normally. 
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