【PyQt】算法-插入、递归、冒泡

# coding=utf-8
import sys
from PyQt4.QtGui import *
from PyQt4.QtCore import *

class MainWindow(QMainWindow):
     def __init__(self,parent=None):
          super(MainWindow,self).__init__(parent)
          self.setWindowTitle(u'算法实现')
          self.setWindowIcon(QIcon('image/5.png'))

          #设置输入数据窗口&数据输出窗口
          in_out_putDock=QDockWidget(u'输入输出')
          in_out_putDock_workspace=QWorkspace()
          in_out_putDock.setWidget(in_out_putDock_workspace)
          label_in=QLabel(u'输入数据窗口,数据以“，”分隔')
          label_out=QLabel(u'输出数据窗口')
          self.inTextEdit=QTextEdit()
          self.outTextEdit=QTextEdit()
          layout=QGridLayout()
          layout.addWidget(label_in,0,0)
          layout.addWidget(self.inTextEdit,1,0,1,4)
          layout.addWidget(label_out,2,0)
          layout.addWidget(self.outTextEdit,3,0,1,4)
          in_out_putDock_workspace.setLayout(layout)
          self.addDockWidget(Qt.LeftDockWidgetArea,in_out_putDock)

          #设置算法（algorithm）按钮及运行时间显示控件
          algori_Dock=QDockWidget(u'各类算法')
          algori_Dock_workspace=QWorkspace()
          algori_Dock.setWidget(algori_Dock_workspace)
          self.clearButton=QPushButton(u'清除输出框内容')
          self.clear_in_Button=QPushButton(u'清除输入框内容')
          self.insert_sort_Button=QPushButton(u'插入升序算法')
          self.merge_Button=QPushButton(u'分治递归升序算法')
          self.bubble_Button=QPushButton(u'冒泡升序算法')
          time_label=QLabel(u'算法运行时间： ')
          self.runTime_label=QLabel()
          self.runTime_label.setFrameShape(QFrame.Box)
          layout2=QGridLayout()
          layout2.addWidget(time_label,0,0)
          layout2.addWidget(self.runTime_label,0,1)
          layout2.addWidget(self.clearButton,1,0,1,1)
          layout2.addWidget(self.clear_in_Button,1,1,1,1)
          layout2.addWidget(self.insert_sort_Button,2,0,1,1)
          layout2.addWidget(self.merge_Button,2,1,1,1)
          layout2.addWidget(self.bubble_Button,3,0,1,1)
          layout2.setRowStretch(4,1)
          algori_Dock_workspace.setLayout(layout2)
          self.addDockWidget(Qt.RightDockWidgetArea,algori_Dock)

          #将按钮与动作相连
          self.connect(self.insert_sort_Button,SIGNAL('clicked()'),self.insertSortUp)
          self.connect(self.clearButton,SIGNAL('clicked()'),self.clearInOutEdit)
          self.connect(self.merge_Button,SIGNAL('clicked()'),self.MergeSortUp)
          self.connect(self.clear_in_Button,SIGNAL('clicked()'),self.clearInEdit)
          self.connect(self.bubble_Button,SIGNAL('clicked()'),self.bubbleSortUp)

     #从输入文本框中获取文本并返回数字列表
     def getData(self):
          textData=self.inTextEdit.document()
          textData_str=textData.toPlainText()
          data=str(textData_str).split(',')
          data_f=[]
          for i in range(len(data)):
               data_f.append(float(data[i]))
          return data_f

     def showResult(self,pname,runcount,time,data):
          tex=pname+u'：  ||运行时间为：'+str(time)+u'  毫秒 ||运行所用循环执行次数为：'+str(runcount)+u'  次||运行结果为：  '+str(data)
          self.outTextEdit.append(tex)
          self.runTime_label.setText(str(time)+u'毫秒')

     def insertSortUp(self):
          run_time=QTime()
          run_time.start()
          data=self.getData()
          runcount=0
          #插入排序算法
          j=1
          for j in range(len(data)):
               key=data[j]
               i=j-1
               while i>=0 and data[i]>key:
                    data[i+1]=data[i]
                    i-=1
                    runcount+=1
               data[i+1]=key

          spend_time=run_time.elapsed()
          self.showResult(u'插入升序算法',runcount,spend_time,data)

     def clearInOutEdit(self):
          self.outTextEdit.clear()

     def clearInEdit(self):
          self.inTextEdit.clear()

     #分治递归合并两个数组
     def Merge(self,data,p,q,r,runcount):
          n1=q-p+1
          n2=r-q
          L=[]
          R=[]
          for i in range(n1):
               L.append(data[p+i-1])
               runcount+=1
          for j in range(n2):
               R.append(data[q+j])
               runcount+=1
          L.append(1000000000)
          R.append(1000000000)
          a=0
          b=0
          k=p
          #self.outTextEdit.append(str(L)+'+'+str(R))
          while  k<=r:
               if L[a]<R[b]:
                    data[k-1]=L[a]
                    a+=1
               else:
                    data[k-1]=R[b]
                    b+=1
               k+=1
               runcount+=1

          #递归主函数
     def MergeSort(self,data,p,r,runcount):
          if p<r:
               q=int((p+r)/2)
               self.MergeSort(data,p,q,runcount)
               self.MergeSort(data,q+1,r,runcount)
               self.Merge(data,p,q,r,runcount)
               runcount+=1

          #递归按钮动作
     def MergeSortUp(self):
          run_time1=QTime()
          run_time1.start()
          data=self.getData()
          runcount=0
          self.MergeSort(data,1,len(data),runcount)
          spend_time=run_time1.elapsed()
          self.showResult(u'分治递归升序算法',runcount,spend_time,data)

          #冒泡排序算法
     def bubbleSortUp(self):
          run_time_bubble=QTime()
          run_time_bubble.start()
          data=self.getData()
          runcount=0
          for i in range(len(data)):
               j=len(data)-1
               while j>i:
                    if data[j]<data[j-1]:
                         temp=data[j]
                         data[j]=data[j-1]
                         data[j-1]=temp
                         runcount+=1
                    j-=1

          spend_time_bubble=run_time_bubble.elapsed()
          self.showResult(u'冒泡升序排序算法',runcount,spend_time_bubble,data)

app=QApplication(sys.argv)
form=MainWindow()
form.show()
app.exec_()

插入算法的数量级为n的平方 递归数量级为logn 冒泡排序的数量级为n的平方