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如何強制以下信號中的任何一個從按鈕按下時觸發的功能內發射?強制QListWidget信號在發射區
def currentItemChanged (current, previous)
def currentRowChanged (currentRow)
def currentTextChanged (currentText)
def itemActivated (item)
def itemChanged (item)
def itemClicked (item)
def itemDoubleClicked (item)
def itemEntered (item)
def itemPressed (item)
def itemSelectionChanged()