可以绑定变量，你可以再一个画面单独加一个按钮，配置指令，再你的源代码中找到你指令的配置，然后按照这个结构绑定，下面是我的例子，你要根据你实际的指令来写，绑定的时候要把内容包再（）中image.png
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