本文记录了一次因静态变量引发的bug排查经历。作者发现一个成员函数内的静态变量未能按预期重置为TRUE，导致后续调用出现问题。通过分析，找到了问题根源，并分享了解决方案。
This morning a bug was reported to me. I tried to find what cause it, and till this afternoon I found it.
The bug was caused by a static varient in a member function. It stay on FALSE from the last call. But I want it to be TRUE the latest calling.
The varient was declared like this:
static BOOL bNoClear = TRUE;
It looks like that it will be TRUE after running across this line if you are careless. So I was confused by this.
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