import random
opr = ['+','-','×','÷']
num = [1,2,3,4,5,6,7,8,9,1/2,1/3,1/4,1/5,1/6,1/7,1/8,1/9,2/3,2/5,2/7,2/9,3/4,3/5,3/7,3/8,4/5,4/7,4/9,5/6,5/7,5/8,5/9,6/7,7/8,7/9,8/9]
jg = '0'
m1 = input("Input the number of problems you want: ")
try:
m = int(m1) n = 0 while n <= m: fh = random.randint(0, 3) from random import choice n1 = choice(num) n2 = choice(num) rjg = 0 if fh == 0: rjg = n1 + n2 elif fh == 1: n1,n2 = max(n1,n2),min(n1,n2) rjg = n1 - n2 elif fh == 2: rjg = n1 * n2 elif fh == 3: n1,n2 = max(n1,n2),min(n1,n2) while n1 % n2 != 0: n1 = random.randint(1, 10) n2 = random.randint(1, 10) n1,n2 = max(n1,n2),min(n1,n2) rjg = int(n1 / n2) print(n1, opr[fh], n2, '= ') print('the right answer is', rjg) n = n+1 if n > m: input()
except ValueError as e:
print("Invalid input.Please reset the program and input a number to run it correctly.")
我的代码仍不完全,没有完全实现作业要求(https://www.cnblogs.com/jiel/p/4810756.html)
目前我做到的有:控制题目生成的数量,计算出题目的答案,判断输入数据是否有意义并在无意义时提出指引。
没能做到,但是理论上已经有思路的有:随机运算符的数量(方法同我使用的随机符号,可再添加一个随机项,设置一个变量,每次循环过后该变量加一,直到与随机得出的变量相等,循环停止),扩大数字的范围(用编程语言实现对真分数的引入,设置变量控制数值范围),对输入答案和正确答案的评判(增加变量,使用=!判断,输出对错即可),确保不会出现负数等(在写出题目前判断结果是否是真分数或正数,若不是则不写出这个题目)
目前我认为自己不能做到的有:无法将题目,答案和统计对错结果另存为TXT文件,支持一万道题目的生成(数据有限)