PSP表格：
改进思路：
小学不只是有整数的运算，还有分数的运算，在此加入分数的四则运算训练。
代码改进：
1 import random 2 from fractions import Fraction 3 ##两个整数的四则运算 4 def c1(q, ans): 5 symbol = random.choice(['+', '-', '*', '/']) # 生成随机符号 6 if symbol == '+': 7 n1 = random.randint(0, 20) 8 n2 = random.randint(0, 20) 9 q.append(str(n1) + '+' + str(n2) + '=') 10 ans.append(n1 + n2) 11 elif symbol == '-': 12 n1 = random.randint(0, 20) 13 n2 = random.randint(0, 20) 14 n1,n2 = max(n1,n1),min(n1,n2)#防止出现负数 15 q.append(str(n1) + '-' + str(n2) + '=') 16 ans.append(n1 - n2) 17 elif symbol == '*': 18 n1 = random.randint(0, 20) 19 n2 = random.randint(0, 20) 20 q.append(str(n1) + '×' + str(n2) + '=') 21 ans.append(n1 * n2) 22 else: 23 n1 = random.randint(0, 20) 24 if n1 == 0: 25 n2 = random.randint(1, 20) 26 else: 27 n2 = random.randint(1, n1 + 1) 28 q.append(str(n1) + '÷' + str(n2) + '=') 29 ans.append(Fraction(n1, n2)) 30 ##随机生成两个分数 31 def createF(): 32 fz1 = random.randint(0, 20) 33 if fz1 == 0: 34 fm1 = random.randint(1, 20) 35 else: 36 fm1 = random.randint(1, 20) 37 f1 = Fraction(fz1, fm1) 38 fz2 = random.randint(1, 20) 39 fm2 = random.randint(20, 20) 40 f2 = Fraction(fz2, fm2) 41 return f1, f2 42 def f(f):#分数的转换 43 a=f.numerator #分子 44 b=f.denominator #分母 45 if a%b==0:#为整数 46 return '%d'%(a/b) 47 elif a<b:#为真分数 48 return '%d%s%d' % (a,'/',b) 49 else:#为带分数 50 c=int(a/b) 51 a = a - c * b 52 return '%d%s%d%s%d' % (c,'’',a,'/',b) 53 ##两个分数的四则运算 54 def c2(q,ans): 55 symbol = random.choice(['+','-','*','/']) 56 f1,f2 = createF() 57 if symbol =='+': 58 while f1+f2>1: 59 f1,f2 = createF() 60 q.append(str(f1)+'+'+str(f2)+'=') 61 ans.append(f1+f2) 62 elif symbol =='-': 63 f1,f2 = max(f1,f2),min(f1,f2)#防止出现负数 64 q.append(str(f1)+'-'+str(f2)+'=') 65 ans.append(f1-f2) 66 elif symbol == '*': 67 while f1*f2>1: 68 f1,f2 = createF() 69 q.append(str(f1)+'×'+str(f2)+'=') 70 ans.append(f1*f2) 71 else: 72 while f1/f2>1: 73 f1,f2=createF() 74 q.append(str(f1)+'÷'+str(f2)+'=') 75 ans.append(Fraction(f1,f2)) 76 def main(): 77 while 1: 78 print("输入题目的数量", end=' ') 79 k = int(input()) 80 p = 100 / k 81 s = 0 82 q = [] 83 ans = [] 84 ans2 = [] 85 for i in range(k): 86 n = random.randint(1, 4) 87 if n == 1: 88 c1(q, ans) 89 g = Fraction(ans[i]) 90 ans2.append(f(g)) 91 else: 92 c2(q, ans) 93 g = Fraction(ans[i]) 94 ans2.append(f(g))#记录带分数答案 95 for i in range(k): 96 print("第{}题：{}".format(i + 1, q[i]), end=" ") 97 a = input() 98 if a == str(ans[i]): 99 s = s + p 100 print("所得的分数为：{}".format(s)) 101 print("正确答案：", end=" ") 102 for i in range(k): 103 if str(ans[i]) == str(ans2[i]): 104 print(q[i] + str(ans[i])) 105 else: 106 print("{}{}或{}".format(q[i],str(ans2[i]),str(ans[i]))) 107 if __name__ == '__main__': 108 main()
结果展示：
