python - PyQt5如何给tablewidget添加点击事件？除了tablewidget还有什么具有scroll？
1.tableWidget怎么控制大小，能否用label来替代？
2.如何添加动作，点击目录后导出内容？
3.通过setColumnStretch设置的列宽，在目录导出后，约束失效了，这是为什么？
import sys
from PyQt5.QtWidgets import *
import urllib.request as request
import Spider
class MainScene(QWidget):
def __init__(self):
super().__init__()
self.contextGrid()
self.show()
def contextGrid(self):
self.resize(500,300);
self.grid = QGridLayout()
self.setLayout(self.grid)
self.novelNameEdit = QLineEdit("http://xs.dmzj.com/2012/index.shtml")
self.searchBtn = QPushButton("Search")
self.blankLabel = QLabel("")
self.novelText = QLabel("Content")
self.grid.addWidget(self.novelNameEdit,0,0,1,1)
self.grid.addWidget(self.searchBtn,0,1,1,1)
self.grid.addWidget(self.blankLabel,0,2,1,3)
self.grid.addWidget(self.novelText,1,1,1,4)
self.grid.setColumnStretch(1,1)
self.grid.setColumnStretch(2,1)
self.grid.setColumnStretch(3,3)
self.searchBtn.clicked.connect(self.searchBtnClick)
def searchBtnClick (self):
pass
Sp = Spider.Catalogue()
content = request.urlopen(self.novelNameEdit.text()).read()
content = str(content, 'utf-8')
Sp.feed(content)
Sp.close()
catalogueCount = len(Sp.catalogueList)
tableWidget = QTableWidget(catalogueCount,1)
tableWidget.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
tableWidget.setEditTriggers(QAbstractItemView.NoEditTriggers)
for ca in range(catalogueCount):
tableWidget.setItem(ca,0,QTableWidgetItem(Sp.catalogueList[ca]))
self.grid.addWidget(tableWidget, 1, 0, 1, 1)
if __name__ == "__main__":
App = QApplication(sys.argv)
MS = MainScene()
sys.exit(App.exec_())Spider.py
# -*- coding:utf-8 -*-
import html.parser as Pa
class Catalogue(Pa.HTMLParser):
a_t = False
alt = ""
title = ""
catalogueList = []
def handle_data(self, data):
if self.a_t is True:
self.catalogueList.append(data)
def handle_starttag(self, tag, attrs):
if str(tag).startswith("a"):
for key,value in attrs:
if key == "alt":
self.alt = value
elif key == "title":
self.title = value
elif key == "href" and (value.find("/2012/")) == 0 and (value.find("index.")) == -1 and (value.find(".txt")) == -1:
self.a_t = True
else:
self.a_t = False
def handle_endtag(self, tag):
if tag == "a":
self.a_t=False
class NovelText(Pa.HTMLParser):
a_t = False
def handle_starttag(self, tag, attrs):
if str(tag).startswith("p"):
for key,value in attrs:
if value == "novel_text":
self.a_t = True
break;
else:
self.a_t = False
def handle_data(self, data):
if self.a_t is True:
print(data)
