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self.completed.connect(self.selectOne)
....
#添加选项
def appendItems(self, result):
for item in result:
self.combobox.addItem(item)
self.completed.emit() #发信号通知选项添加完成
# 选项添加完成后选中一个
def selectOne(self):
print(self.combobox.count()) #这里会输出0
for i in range(self.combobox.count()):
if i == 3:
self.combobox.setCurrentIndex(i)