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如何在变量改变时渐隐渐现？（比如为1时渐显 为0时渐隐）
可以利用这个动作来做 结合你的举例，大概类似这样的逻辑去做就行了（不过具体还是得看实际情况来做）
结合你的举例，大概类似这样的逻辑去做就行了（不过具体还是得看实际情况来做）
