利用QFileDialog打开文件对话框

python代码：

 1 import sys
 2 from PyQt5.Qt import  QApplication,QWidget,QFileDialog
 3 def getDir():
 4     '''
 5     利用pyqt5 获取目录路径
 6     return:str
 7     '''
 8     app = QApplication(sys.argv)
 9     path = QFileDialog.getExistingDirectory()
10     return path
11 
12 if __name__ == '__main__':
13     ret = getDir()
14     print(ret)

应用：

在指定的文件夹下自动创建文件！

 1 import sys
 2 from PyQt5.Qt import  QApplication,QWidget,QFileDialog
 3 def getDir():
 4     '''
 5     利用pyqt5 获取目录路径
 6     return:str
 7     '''
 8     app = QApplication(sys.argv)
 9     path = QFileDialog.getExistingDirectory()
10     return path
11 
12 if __name__ == '__main__':
13     import os
14     path = getDir()
15     os.chdir(path)
16     for i in range(100):
17         new_fileName = "file_{}.txt".format(i)
18         with open(new_fileName,'w') as f:
19             f.write("My number is {}!
".format(i))
20             f.write("Hello World!
")
21             f.write("Life is short,I learn Python!")

自动创建多个文件