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比如我输入框输入一个数我想添加进那个数组，但是我想先检查在这个数组里是不是有重复的内容，有的话就不可以添加
@逃离企画 数组不是有可以检测是否包含某个值的条件吗，直接比对一下输入框的当前内容来做分歧就行了吧
