本文实例为大家分享了python实现分页效果展示的具体代码，供大家参考，具体内容如下

难点：清空Layout

#!/usr/bin/python #-*-coding:utf-8-*- from PyQt4.QtCore import * from PyQt4.QtGui import * class PageWidget(QWidget): def __init__(self,parent=None): super(PageWidget,self).__init__(parent) self.btns=[] self.count=0 self.presign=0 #当前点击标识 self.nextsign=0 #当前点击标识 self.pre_button=QPushButton() self.pre_button.setText("<<") self.pre_button.setFixedSize(25,25) self.connect(self.pre_button,SIGNAL("clicked()"),self,SLOT("prepage()")) self.next_button=QPushButton() self.next_button.setText(">>") self.connect(self.next_button,SIGNAL("clicked()"),self,SLOT("nextpage()")) self.next_button.setFixedSize(25,25) self.center_layout=QHBoxLayout() self.nextpage() self.page_layput=QHBoxLayout() self.page_layput.addWidget(self.pre_button) self.page_layput.addLayout(self.center_layout) self.page_layput.addWidget(self.next_button) self.setLayout(self.page_layput) @pyqtSlot() def prepage(self): self.presign=1 self.num=0 if (len(self.btns)>0) and (self.count>=10): for p in range(10): self.center_layout.removeWidget(self.btns[p]) self.btns[p].deleteLater() self.btns=[] if self.count>=10: if self.nextsign==1: self.count=self.count-20 self.nextsign=0 else: self.count=self.count-10 self.num=self.count for i in range(10): self.num+=1 self.center_button=QPushButton() self.center_button.setText(str(self.num)) self.center_button.setFixedSize(25,25) self.btns.append(self.center_button) self.center_layout.addWidget(self.center_button) #print self.count @pyqtSlot() def nextpage(self): self.nextsign=1 if len(self.btns)>0: for p in range(10): self.center_layout.removeWidget(self.btns[p]) self.btns[p].deleteLater() self.btns=[] if self.presign==1: self.count=self.count+10 self.presign=0 #mapper转有参数 signal_mapper = QSignalMapper(self) for i in range(10): self.count+=1 self.center_button=QPushButton() self.center_button.setText(str(self.count)) self.center_button.setFixedSize(25,25) self.btns.append(self.center_button) self.connect(self.center_button,SIGNAL("clicked()"),signal_mapper,SLOT("map()")) signal_mapper.setMapping(self.center_button, str(self.count)) self.center_layout.addWidget(self.center_button) self.connect(signal_mapper, SIGNAL("mapped(QString)"), self, SLOT("showpage(QString)")) #print self.count @pyqtSlot(QString) def showpage(self,page): print page if __name__=='__main__': import sys app=QApplication(sys.argv) page=PageWidget() page.show() sys.exit(app.exec_())

效果图：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。