TA贡献868条经验 获得超0个赞
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TA贡献1036条经验 获得超461个赞
看一下这个div的children属性就行了,如果它的children的length等于0,他就肯定没有子元素,如果大于0就是有子元素,然后再判断他的子元素中有没有你要找的那一个就行了。
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