Python加减法数学题

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Python加减法数学题

#Python加减法数学题| 来源: 网络整理| 查看: 265

大家好！

这是我第一次发博客，如有优化空间，请各位在评论区大胆地提出建议！我会虚心接受的！

前言

最近一段时间，我亲爱的弟弟迷上了做数学题，天天缠着我妈出题给他，我妈被他搞得焦头烂额，便向我求助。我自告奋勇，要用Python帮她解决！

准备

解释器：Python 3.9.6（版本都没关系，是Python3.x就行）

IDE：VSCode

库：random、datetime、rich（为了美观）、pyinstaller

rich和pyinstaller是第三方库，所以要先在cmd中输入：

pip install rich pip install pyinstaller

请一定要先看这篇文章来掌握rich库的用法。

等库下载完毕，就可以导入进去了。

import random import datetime from rich import print

导完了库，就可以开始掉头发写代码了

第一部分：初始化

我要在最后进行一个复盘，所以在前面先设好：

rightTimes = 0#答对题目数量 a = 0#数1 sign1 = 0#符号1 b = 0#数2 sign2 = 0#符号2 c = 0#数3 answer_right = 0#正确答案 answer_input = 0#输入答案

然后询问：

print("[bold magenta]请输入出题范围:[/bold magenta]",end = "") size = int(input()) print("[bold magenta]请输入题目数量:[/bold magenta]",end = "") times = int(input())

（因为rich我只导了print函数，所以input显示不出print可以显示出的漂亮的文本，我只能将print和input分开写）

这样，初始化就完毕了。

第二部分：创建算式

首先，我们要确定这个式子是两个数的还是三个数的：

control = random.randint(0,1)#控制变量control, 通过0和1来确定该算式为两数计算(0)还是三数计算(1)

然后生成数和符号：

a = random.randint(0,size) sign1 = random.randint(0,1) if sign1 == 0: sign1 = "+" else: sign1 = "-" if sign1 == "-": if a == 0: b = 0 else: b = random.randint(0,a) else: b = random.randint(0,size) if control == 1: sign2 == random.randint(0,1) if sign2 == 0: sign2 = "+" else: sign2 = "-" if sign1 == "-" and sign2 == "-":#控制c的范围 c = random.randint(0,a-b) elif sign1 == "-" and sign2 == "+": c = random.randint(0,size) elif sign1 == "+" and sign2 == "-": if a+b > size: c = random.randint(0,size) else: c = random.randint(0,a+b) else: c = random.randint(0,size)

c的范围我现在自己也理不大清楚了，你们自己去琢磨吧唉……ε=(´ο｀*)))（别骂我！）

随后去生成答案：

answer_right = a if sign1 == "+": answer_right += b else: answer_right -= b if control == 1: if sign2 == "+": answer_right += c else: answer_right -= c

这块应该很好理解，就是顺序向下，如果是加号则加上下一个数，如果是减号则减掉下一个数。

至此，算式创建就正式结束了

第三部分：输入判断

首先，我们要将算式输出：

print(i+1,end = "") print("[bold blue]|[/bold blue]",end = "") print(a,end = "") print(sign1,end = "") print(b,end = "") if control == 1: print(sign2,end = "") print(c,end = "") print("=",end = "")

随后判断输入是否符合逻辑（因为我的弟弟总是输入一些奇奇怪怪的答案）。

首先，我要建立两个（我认为是）布尔值变量：

unRight = True enterFirst = False

然后：

while unRight: answer_input = input() if answer_input == '\n': print("请不要输入回车! 请再次输入!") unRight = True enterFirst = True if not enterFirst: if answer_input[0] == '0' and answer_input[1] != '.': print("请不要在开头输入0! 请再次输入!") unRight = True else: unRight = False if not unRight and not enterFirst: try: answer_input = int(answer_input) unRight = False except: print("请不要输入字符! 请再次输入!") unRight = True

然后，如果输入错误，就再将式子输出一遍：

if unRight: print(i+1,end = "") print("[bold blue]|[/bold blue]",end = "") print(a,end = "") print(sign1,end = "") print(b,end = "") if control == 1: print(sign2,end = "") print(c,end = "") print("=",end = "")

如果输入正确，unRight变成false，就会退出循环，然后判断正误：

if(answer_input == answer_right): print("[bold green]正确[/bold green]") rightTimes += 1 else: print("[bold red]错误[/bold red]") 第四部分：复盘、退出

直接上代码：

end = datetime.datetime.now() print("你一共答了",end = "") print(times,end = "") print("题, 答对了",end = "") print(rightTimes,end = "") print("题, 答错了",end = "") print(times-rightTimes,end = "") print("题, 共用时",end = "") if end.hour - end.hour != 0: print(end.hour - start.hour,end = "") print("小时",end = "") print(end.minute - start.minute,end = "") print("分钟",end = "") if end.minute > start.minute: print(end.second - start.second,end = "") print("秒。",end = "") elif end.hour - start.hour == 0 and end.minute - start.minute != 0: print(end.minute - start.minute,end = "") print("分钟",end = "") if end.minute > start.minute: print(end.second - start.second,end = "") print("秒。",end = "") elif end.hour - start.hour == 0 and end.minute - start.minute == 0 and end.second - start.second != 0: print(end.second - start.second,end = "") print("秒。",end = "") print() if rightTimes == times: print("[bold green]你真厉害![/bold green]") elif float(times*0.4) size: c = random.randint(0,size) else: c = random.randint(0,a+b) else: c = random.randint(0,size) answer_right = a if sign1 == "+": answer_right += b else: answer_right -= b if control == 1: if sign2 == "+": answer_right += c else: answer_right -= c print(i+1,end = "") print("[bold blue]|[/bold blue]",end = "") print(a,end = "") print(sign1,end = "") print(b,end = "") if control == 1: print(sign2,end = "") print(c,end = "") print("=",end = "") unRight = True enterFirst = False while unRight: answer_input = input() if answer_input == '\n': print("请不要输入回车! 请再次输入!") unRight = True enterFirst = True if not enterFirst: if answer_input[0] == '0' and answer_input[1] != '.': print("请不要在开头输入0! 请再次输入!") unRight = True else: unRight = False if not unRight and not enterFirst: try: answer_input = int(answer_input) unRight = False except: print("请不要输入字符! 请再次输入!") unRight = True if unRight: print(i+1,end = "") print("[bold blue]|[/bold blue]",end = "") print(a,end = "") print(sign1,end = "") print(b,end = "") if control == 1: print(sign2,end = "") print(c,end = "") print("=",end = "") if(answer_input == answer_right): print("[bold green]正确[/bold green]") rightTimes += 1 else: print("[bold red]错误[/bold red]") end = datetime.datetime.now() print("你一共答了",end = "") print(times,end = "") print("题, 答对了",end = "") print(rightTimes,end = "") print("题, 答错了",end = "") print(times-rightTimes,end = "") print("题, 共用时",end = "") if end.hour - end.hour != 0: print(end.hour - start.hour,end = "") print("小时",end = "") print(end.minute - start.minute,end = "") print("分钟",end = "") if end.minute > start.minute: print(end.second - start.second,end = "") print("秒。",end = "") elif end.hour - start.hour == 0 and end.minute - start.minute != 0: print(end.minute - start.minute,end = "") print("分钟",end = "") if end.minute > start.minute: print(end.second - start.second,end = "") print("秒。",end = "") elif end.hour - start.hour == 0 and end.minute - start.minute == 0 and end.second - start.second != 0: print(end.second - start.second,end = "") print("秒。",end = "") print() if rightTimes == times: print("[bold green]你真厉害![/bold green]") elif float(times*0.4)

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Python加减法数学题

Python加减法数学题

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