Python 实验二 tkinter 版小学数学口算题生成器设计与实现

在小学一、二年级，只能口算 20 以内整数的加、减法；三、四年级可以口 算超过 20 的整数四则运算；五年级以上可以口算带括号的式子。 编写程序，批量生成小学口算题，要求把生成的口算题写入 Word 文件中 的表格。表格共 4 列，用户指定表格行数和题目适用年级。程序运行后界面如 下图所示。

 

import random
import os
import tkinter
import tkinter.ttk
from docx.shared import Pt
from docx import Document
columnsNumber = 4
def main(rowsNumbers,grade):
    if grade < 3:
        operators = '+-'
        Max = 20
    elif grade <= 4:
        operators = '＋－×÷'
        Max = 100
    elif grade == 5:
        operators = '＋－×÷('
        Max = 100
    document = Document()
    table = document.add_table(rows=rowsNumbers,cols=columnsNumber)
    table.style.font.name = '微软雅黑'
    table.style.font.size =Pt(10)
    for row in range(rowsNumbers):
        for col in range(columnsNumber):
            first = random.randint(1,Max)
            second = random.randint(1,Max)
            operator = random.choice(operators)
            if operator != '(':    #不是五年级
                if operator == '-'or'÷':
                    if first < second:
                       first,second = second,first   
                r = str(first).ljust(2,' ')+' ' + operator + str(second).ljust(2,' ') + '='
                                
            else:                   #是五年级  
                third = random.randint(1,100)
                while True:
                    o1 = random.choice(operators)
                    o2 = random.choice(operators)
                    if o1 != '(' and o2 !='(':
                        break
                #考虑括号的口算题
                r2 = random.randint(1,100)
                if r2 > 50:
                    if o2 == '-':
                        if second < third:
                            second,third = third,second
                    r = str(first).ljust(2,' ') + o1 +'('+str(second).ljust(2,' ')+o2+str(third).ljust(2,' ')+')='
                else:
                    if o1 == '-':
                        if first < second:
                            first,second = second,first
                    r = '(' + str(first).ljust(2,' ') + o1 +str(second).ljust(2,' ')+')'+o2+str(third).ljust(2,' ')+'='
           
            cell = table.cell(row,col)
            cell.text = r

    document.save('小学生口算题.docx')
    os.startfile("小学生口算题.docx")
    
if __name__ == '__main__':
    app = tkinter.Tk()
    app.title('小学生口算题生成器')
    app['width'] = 300
    app['height'] = 150
    lableNumber = tkinter.Label(app,text='Number:',justify=tkinter.RIGHT,width=50)
    lableNumber.place(x=10,y=40,width=50,height=20)
    comboNumber = tkinter.ttk.Combobox(app,values=(100,200,300,400,500),width=50)
    comboNumber.place(x=70,y=40,width=50,height=20)

    labelGrade = tkinter.Label(app,text='Grade:',justify=tkinter.RIGHT,width=50)
    labelGrade.place(x=130,y=40,width=50,height=20)
    comboGrade = tkinter.ttk.Combobox(app,values=(1,2,3,4,5),width=50)
    comboGrade.place(x=200,y=40,width=50,height=20)
    


    def generate():
        number = int(comboNumber.get())
        grade = int(comboGrade.get())
        rowsNumbers = int(number/4)
        main(rowsNumbers,grade)
    buttonGenerate = tkinter.Button(app,text='Go',width=40,command=generate)
    buttonGenerate.place(x=130,y=90,width=40,height=30)


    app.mainloop()