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【作品展示】

 

【作品介绍】

PyQt5可以运行的代码

 

【作品源代码】

from PyQt5.QtWidgets import QApplication,QLineEdit,QWidget,QFormLayout      
import sys 
class lineEditDemo(QWidget):
    def __init__(self,parent=None):
        super(lineEditDemo,self).__init__(parent)  
        self.setWindowTitle("QLineEdit例子") 

        flo = QFormLayout() 
        pNormalLineEdit = QLineEdit( ) 
        pNoEchoLineEdit = QLineEdit() 
        pPasswordLineEdit = QLineEdit( ) 
        pPasswordEchoOnEditLineEdit = QLineEdit( ) 

        flo.addRow("Normal", pNormalLineEdit) 
        flo.addRow("NoEcho", pNoEchoLineEdit) 
        flo.addRow("Password", pPasswordLineEdit) 
        flo.addRow("PasswordEchoOnEdit", pPasswordEchoOnEditLineEdit) 

        pNormalLineEdit.setPlaceholderText("Normal") 
        pNoEchoLineEdit.setPlaceholderText("NoEcho") 
        pPasswordLineEdit.setPlaceholderText("Password") 
        pPasswordEchoOnEditLineEdit.setPlaceholderText("PasswordEchoOnEdit") 

        # 设置显示效果
        pNormalLineEdit.setEchoMode(QLineEdit.Normal) 
        pNoEchoLineEdit.setEchoMode(QLineEdit.NoEcho) 
        pPasswordLineEdit.setEchoMode(QLineEdit.Password)        
        pPasswordEchoOnEditLineEdit.setEchoMode(QLineEdit.PasswordEchoOnEdit)

        self.setLayout(flo) 

if __name__ == "__main__":
    app = QApplication(sys.argv) 
    win = lineEditDemo() 
    win.show() 
    sys.exit(app.exec_())  

 

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