python3之二年级上数学练习题生成

二年级上数学练习题生成

作为一个家长不容易啊

  1 #coding:utf-8
  2 import random
  3 #小学二年级上数学练习（100以内加减乘）
  4 #生成的题数
  5 count = 50
  6 #每行题数
  7 lineNum = 5
  8 while count > 0:
  9     #获取符号1为加，2为减，3为乘
 10     operator = random.randint(1,3)
 11     #获取操作数和操作结果
 12     str = ""
 13     num1 = num2 = result = 0
 14     if operator == 3:   #乘法口诀
 15         num1 = random.randint(1,9)
 16         num2 = random.randint(1,9)
 17         result = num1*num2
 18         str = "X"
 19     elif operator == 2: #减法
 20         num1 = random.randint(2,100)
 21         num2 = random.randint(1,num1)
 22         result = num1 - num2
 23         str = "-"
 24     else:               #加法
 25         num1 = random.randint(1,100)
 26         num2 = random.randint(0,100-num1)
 27         result = num1 + num2
 28         str = "+"
 29     print("%d%s%d=\t\t" %(num1,str,num2),end = "")
 30     count -= 1
 31     if count%5 == 0:
 32         print()