查了下文档，这个函数好像已经作废了吧。
This function is obsolete. It is provided to keep old source code working. We strongly advise against using it in new code.
【 在 dormouseBHU 的大作中提到: 】
: void QPixmap::setAlphaChannel(const QPixmap &p)
:
--
FROM 118.116.108.*