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Android-IMLibCore-SDK
5.8.2
io.rong.common
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Android-IMLibCore-SDK
/
io.rong.common
/
CollectionUtils
/
containsNull
contains
Null
io.rong.common
public
static
boolean
containsNull
<
T
>
(
Collection
<
T
>
collection
)
检测集合中是否包含 null
Return
true 包含，false 不包含