Jonas

试试这个:

for i in range(0, len(list)):
    if list[i].startswith('F'):
        list[i] = 'qwe'
    elif list[i].startswith('H'):
        list[i] = 'chronic'
    elif list[i].startswith('S'):
        list[i] = 'liable'
    else list[i].startswith('J'):
        list[i] = 'priority'

等。。。

什么时候? checkOne 选中并单击 checkTwo ,输入 selectBooks . 在该函数中,输入 if-else -第一个条件是 self.checkOne.isChecked() ,仍然是 True ,所以你 print(self.checkOne.text(), "1") ,尽管您刚刚单击 支票二 .

你可以给每个人都打个槽 QCheckBox (选项1),否则您需要不知何故地告诉插槽 QCheckbox 刚刚被点击(见选项2)。

你还必须使用 stateChanged 信号。

方案1

from PyQt5 import QtWidgets, QtCore, QtGui
import sys

class window_gui(QtWidgets.QWidget):
    def __init__(self):
        super().__init__()
        self.checkOne = QtWidgets.QCheckBox('one')
        self.checkTwo = QtWidgets.QCheckBox('two')
        self.vlayout = QtWidgets.QVBoxLayout()
        self.vlayout.addWidget(self.checkOne)
        self.vlayout.addWidget(self.checkTwo)
        self.setLayout(self.vlayout)
        self.checkOne.stateChanged.connect(self.selectBooks1)
        self.checkTwo.stateChanged.connect(self.selectBooks2)

    def selectBooks1(self, toggle):
        if toggle == QtCore.Qt.Checked:
            print('checked 1')
        else:
            print('unchecked 1')

    def selectBooks2(self, toggle):
        if toggle == QtCore.Qt.Checked:
            print('checked 2')
        else:
            print('unchecked 2')

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = window_gui()
    w.show()
    app.exec()

选项2( check out 'lambda' expressions ):

from PyQt5 import QtWidgets, QtCore, QtGui
import sys

class window_gui(QtWidgets.QWidget):
    def __init__(self):
        super().__init__()
        self.checkOne = QtWidgets.QCheckBox('one')
        self.checkTwo = QtWidgets.QCheckBox('two')
        self.vlayout = QtWidgets.QVBoxLayout()
        self.vlayout.addWidget(self.checkOne)
        self.vlayout.addWidget(self.checkTwo)
        self.setLayout(self.vlayout)
        self.checkOne.stateChanged.connect(lambda state=self.checkOne.isChecked(), no=1: self.selectBooks(state, no))
        self.checkTwo.stateChanged.connect(lambda state=self.checkTwo.isChecked(), no=2: self.selectBooks(state, no))

    def selectBooks(self, toggle, no):
        if toggle == QtCore.Qt.Checked:
            print('checked '+str(no))
        else:
            print('unchecked '+str(no))

if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    w = window_gui()
    w.show()
    app.exec()

s = 'abcbcdiawuhdawpdijsamksndaadhlmwmdnaowdihasoooandalw'
longest = ''
current = ''
for idx, item in enumerate(s):
    if idx == 0 or item > s[idx-1]:
        current = current + item
    if idx > 0 and item <= s[idx-1]:
        current = ''
    if len(current)>len(longest):
        longest = current
print(longest)

输出:

dhlmw

为了你的理解 'b'>'a' 是 True , 'a'>'b' 是 False 等

编辑:

对于最长连续子串:

s = 'asdefvbrrfqrstuvwxffvd'
abc = 'abcdefghijklmnopqrstuvwxyz'
longest = ''
current = ''
for idx, item in enumerate(s):
    if idx == 0 or abc.index(item) - abc.index(s[idx-1]) == 1:
        current = current + item
    else:
        current = item
    if len(current)>len(longest):
        longest = current
print(longest)

输出:

qrstuvwx