(tm.tmPitchAndFamily & 1 3 :C
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(tm.tmPitchAndFamily&13:C(tm.tmPitchAndFamily&13:C(tm.tmPitchAndFamily&13:Ctm是一个结构,其中有一个tmPitchAndFa
(tm.tmPitchAndFamily & 1 3 :C
(tm.tmPitchAndFamily & 1 3 :C
(tm.tmPitchAndFamily & 1 3 :C
tm是一个结构,其中有一个tmPitchAndFamily成员,如果这个成员&1后不为0则这个式子为3,否则为2