pyqt5中添加一个按钮b,b的功能是添加一个文本框,添加之后如何显示到界面上?

<岩滑textarea id="a"></textarea>

<textarea id="b"></textarea>

<input type="button" value="提交" onclick="tijiao()" />

<input type="button" value="删除" onclick="shanchu()" />

</form>

<script type="text/javascript">

var neirong=new Array

var i=0

function tijiao()

{

var body=document.getElementById("a").value

for(var j=0j<ij++)

{if(neirong[j]==body)

{alert("重复")var p=0}

else var p=1

}

if(p=1)

{

var neirong[i]=body

var b=""

for(var k=0k<=ik++)

{b=b+"<br />"+neirong[k]}

document.getElementById("b").value=b

i++

}

}

function shanchu()

{

var body=document.getElementById("轿改a").value

for(var j=0j<=ij++)

{if(neirong[j]==body)

{for(var q=jq<iq++)

{neirong[q]=neirong[q+1]}

i--}

}

var b="闭枣判"

for(var k=0k<=ik++)

{b=b+"<br />"+neirong[k]}

document.getElementById("b").value=b

}

QAbstractButton/QPushButton,QToolButton,QRadioButton,QCheckBox

按钮状态：

isDown() isChecked() isEnable() isCheckAble() setAutoRepeat()

click

setEnabled() setText() text()

'''

【简辩歼介】

PyQt5中友灶卖好逗QButton例子

'''

import sys

from PyQt5.QtCore import *

from PyQt5.QtGui import *

from PyQt5.QtWidgets import *

class Form(QDialog):

def init (self, parent=None):

super(Form, self). init (parent)

layout = QVBoxLayout()

if name == ' main ':

app = QApplication(sys.argv)

btnDemo = Form()

btnDemo.show()

sys.exit(app.exec_())