python实验二

20233309 2025-3-26 《Python程序设计》实验二报告

课程：《Python程序设计》
班级：2333
姓名：侯成子
学号：20233309
实验教师：王志强
实验日期：2025年3月26日
必修/选修：公选课

1.实验内容

设计并完成一个完整的应用程序，完成加减乘除模等运算，功能多多益善。

考核基本语法、判定语句、循环语句、逻辑运算等知识点

2. 实验过程及结果

（1）编写实验代码
实验代码1（计算器代码）：

import math

def sum(a, b):
    return (a + b)

def sub(a, b):
    return (a - b)

def mul(a, b):
    return (a * b)

def div(a, b):
    if b == 0:
        return b
    return (a / b)

def pysin(a):
    return math.sin(a * 3.14 / 180)

def pycos(a):
    return math.cos(a * 3.14 / 180)

def pycomplex(a, b):
    op = input("请输入复数的运算：+-*/：")
    if  op == "+":
        print("a + b = ", a + b)
        return a + b
    elif op == "-":
        print("a - b = ", a - b)
        return a - b
    elif op == "*":
        print("a * b = ", a * b)
        return a * b
    elif op == "/":
        print("a / b = ", a / b)
        return a / b
    else:
        print("输入有误，返回0")


def pylog(a, b):
    return math.log(b, a)

def pysqrt(a):
    num = float(a)
    return math.sqrt(num)


print("============================欢迎使用Besti计算器=========================================")
print("|                           作者：Hoz最帅2333                                         |")
print("|                            支持功能：                                               |")
print("|                 复数运算 | 三角函数 | 对数 | 幂运算 | 开平方                            |")
print("|                           高级计算器你值得拥有                                        |")
print("=====================================================================================")
flag = True
while flag:
    operator = input("请输入运算符（+ - * / 复数 log sin cos 求幂 开平方）：")

    # 统一修改所有输入为float转换
    if operator == "+":
        a = float(input("请输入a:"))
        b = float(input("请输入b:"))
        print("a+b=", a + b)
    elif operator == "-":
        a = float(input("请输入a:"))
        b = float(input("请输入b:"))
        print("a-b=", a - b)
    elif operator == "*":
        a = float(input("请输入a:"))
        b = float(input("请输入b:"))
        print("a*b=", a * b)
    elif operator == "/":
        a = float(input("请输入a:"))
        b = float(input("请输入b:"))
        print("a/b=", a / b if b !=0 else "除数不能为0")
    elif operator == "log":
        a = float(input("请输入底数a:"))
        b = float(input("请输入对数b:"))
        print("loga b=", math.log(b, a))
    elif operator == "sin":
        a = float(input("请输入a:"))
        print("sin(a)=", math.sin(a * 3.14 / 180))
    elif operator == "复数":
        a = complex(input("请输入复数a（例3+4j）:"))
        b = complex(input("请输入复数b（例1+2j）:"))
        print(pycomplex(a, b))
    elif operator == "cos":
        a = float(input("请输入a:"))
        print("cos(a)=", math.cos(a * 3.14 / 180))
    elif operator == "开平方":
        a = float(input("请输入a:"))  # 关键修改点：输入转float
        print("sqrt(a)=", pysqrt(a))
    elif operator == "求幂":
        a = float(input("请输入底数a:"))
        b = float(input("请输入次数b:"))
    else:
        print("输入有误！")
    flag = input("是否要继续？Y or N：").lower() != "n"

实验代码2：

将简易计算器程序转换为使用Tkinter的图形界面

import math
import tkinter  # tkinter是一个GUI工具包

root = tkinter.Tk()  # 创建窗口，root是窗口的名字
root.geometry("350x500+630+260")
root.title("hoz的简易计算器")
# 1.界面布局
# 显示面板
result = tkinter.StringVar()
result.set(0)  # 显示面板显示结果1,用于显示默认数字0
result2 = tkinter.StringVar()
# 显示版
label = tkinter.Label(root, font=('微软雅黑', 20), bg='#EEE9E9', bd='9', fg='#828282', anchor='se', textvariable
=result2)
label.place(width=350, height=170)
label2 = tkinter.Label(root, font=('微软雅黑', 30), bg='#EEE9E9', bd='9', fg='black', anchor='se', textvariable
=result)
label2.place(y=170, width=350, height=60)
# 数字键按钮

btn7 = tkinter.Button(root, text='7', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('7'))
btn7.place(x=0, y=285, width=70, height=55)
btn8 = tkinter.Button(root, text='8', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('8'))
btn8.place(x=70, y=285, width=70, height=55)
btn9 = tkinter.Button(root, text='9', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('9'))
btn9.place(x=140, y=285, width=70, height=55)

btn4 = tkinter.Button(root, text='4', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('4'))
btn4.place(x=0, y=340, width=70, height=55)
btn5 = tkinter.Button(root, text='5', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('5'))
btn5.place(x=70, y=340, width=70, height=55)
btn6 = tkinter.Button(root, text='6', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('6'))
btn6.place(x=140, y=340, width=70, height=55)

btn1 = tkinter.Button(root, text='1', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('1'))
btn1.place(x=0, y=395, width=70, height=55)
btn2 = tkinter.Button(root, text='2', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('2'))
btn2.place(x=70, y=395, width=70, height=55)
btn3 = tkinter.Button(root, text='3', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('3'))
btn3.place(x=140, y=395, width=70, height=55)
btn0 = tkinter.Button(root, text='0', font=('仿宋', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressNum('0'))
btn0.place(x=70, y=450, width=70, height=55)
# 运算符号按钮
btnac = tkinter.Button(root, text='AC', bd=0.5, font=('黑体', 20), fg='orange', command=lambda: pressCompute('AC'))
btnac.place(x=0, y=230, width=70, height=55)
btnback = tkinter.Button(root, text='←', font=('微软雅黑', 20), fg='#4F4F4F', bd=0.5, command=lambda:
pressCompute('b'))
btnback.place(x=70, y=230, width=70, height=55)
btndivi = tkinter.Button(root, text='÷', font=('微软雅黑', 20), fg='#4F4F4F', bd=0.5, command=lambda:
pressCompute('/'))
btndivi.place(x=140, y=230, width=70, height=55)
btnmul = tkinter.Button(root, text='×', font=('微软雅黑', 20), fg="#4F4F4F", bd=0.5, command=lambda:
pressCompute('*'))
btnmul.place(x=210, y=230, width=70, height=55)
btnsub = tkinter.Button(root, text='-', font=('微软雅黑', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('-'))
btnsub.place(x=210, y=285, width=70, height=55)
btnadd = tkinter.Button(root, text='+', font=('微软雅黑', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('+'))
btnadd.place(x=210, y=340, width=70, height=55)
btnequ = tkinter.Button(root, text='=', bg='orange', font=('微软雅黑', 20), fg=('#4F4F4F'), bd=0.5, command=
lambda: pressEqual())
btnequ.place(x=280, y=395, width=70, height=110)
btnper = tkinter.Button(root, text='%', font=('微软雅黑', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('%'))
btnper.place(x=0, y=450, width=70, height=55)
btnpoint = tkinter.Button(root, text='.', font=('微软雅黑', 20), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('.'))
btnpoint.place(x=140, y=450, width=70, height=55)
btlog = tkinter.Button(root, text='log10', font=('微软雅黑', 11), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('log10'))
btlog.place(x=210, y=450, width=70, height=55)
btnln = tkinter.Button(root, text='e', font=('微软雅黑', 11), fg=('#4F4F4F'), bd=0.5, command=lambda:
pressCompute('e'))
btnln.place(x=210, y=395, width=70, height=55)

lists = []
isPressSign = False
isPressNum = False


def pressNum(num):
    global lists
    global isPressSign
    if isPressSign == False:
        pass
    else:
        result.set(0)
        isPressSign = False

    oldnum = result.get()
    if oldnum == '0':
        result.set(num)
    else:
        newnum = oldnum + num
        result.set(newnum)


def pressCompute(sign):
    global lists
    global isPressSign
    num = result.get()
    lists.append(num)

    lists.append(sign)
    isPressSign = True

    if sign == 'AC':
        lists.clear()
        result.set(0)
    if sign == 'b':
        a = num[0:-1]
        lists.clear()
        result.set(a)

    if sign == 'ln':
        result.set(math.log10(int(num)))


def pressEqual():
    global lists
    global isPressSign

    curnum = result.get()
    lists.append(curnum)

    computrStr = ''.join(lists)
    endNum = eval(computrStr)
    result.set(endNum)
    result2.set(computrStr)
    lists.clear()


root.mainloop()

（2）具体步骤

创建工程项目，使用Python语言实现具体的操作运算，并完成程序调试和运行，代码托管到码云。

注：在华为ECS服务器(OpenOuler系统)和物理机(Windows/Linux系统)上使用VIM、IDLE、Pycharm等工具编程实现。

（3）实验内容及结果
①实验代码的使用
A．代码1的使用