小学生四则运算之功能升级

 

# -*- coding: utf-8 -*-
"""
Created on Sun Sep 20 15:04:51 2020

@author: Thinkpad
"""
# -*- coding: utf-8 -*-
#导入random模块
import random
@profile
#定义产生真分数的函数
def fraction():
    while(True):
        a=random.randint(1,100)
        b=random.randint(1,100)
        if a/b<1:
            return str(a)+"/"+str(b)
            break

#定义产生带括号运算函数
def brackets():
    a="("
    e=")"
    b=str(random.randint(1,100))
    c=random.choice('+-*/')
    d=fraction()
    if eval(b+c+d)>0:
        return a+b+c+d+e


#生成并打印四则运算表达式
for i in range(30):
    a= brackets()
    b=str(random.choice('+-*/'))
    c=fraction()
    if eval(a+b+c)>=0:
        print(a,b,c,"=","        答案:",eval(a+b+c))

　　1.之前代码--性能测试(请看上篇)

 

 2.功能增加:

增加了统计你做对了,总得分

代码展示

 

"""
Created on Sun Sep 20 15:04:51 2020

@author: Thinkpad
"""
# -*- coding: utf-8 -*-
#导入random模块
import random
#@profile
#定义产生真分数的函数
def fraction():
    while(True):
        a=random.randint(1,100)
        b=random.randint(1,100)
        if a/b<1:
            return str(a)+"/"+str(b)
            break

#定义产生带括号运算函数
def brackets():
    a="("
    e=")"
    b=str(random.randint(1,100))
    c=random.choice('+-*/')
    d=fraction()
    if eval(b+c+d)>0:
        return a+b+c+d+e


#生成并打印四则运算表达式
def main():
    print("请输入想要做的题量")
    amount = int(input())
    count = 0
    for i in range(amount):
        a= brackets()
        b=str(random.choice('+-*/'))
        c=fraction()
        if eval(a+b+c)>=0:
            print(a,b,c,"=","     :",)
            answer = float(input())
            if answer == eval(a+b+c):
                print("答案正确")
                count = count + 1
            else:
                print("答案错误，正确答案为：",eval(a+b+c))       
    print("测试得分为",float(count*(100/amount)))
if __name__ == '__main__':
    main()

 

　　

 

 3.运行截图