口算题卡升级版本

import random

count = 0
strA = ""
strB = ""

while True:
    # 随机生成1或者2，表示是+还是-
    addOrreduce = random.randint(1, 2)
    # 随机生成两个数字
    a = random.randint(10, 200)
    b = random.randint(10, 200)
    if addOrreduce == 1:
        if a + b > 100:
            continue
        strA = strA + " " + str(a) + "+" + str(b) + "="
        strB = strB + " " + str(a) + "+" + str(b) + "=" + str(a + b)

    else:
        if a - b < 0:
            continue
        strA = strA + " " + str(a) + "-" + str(b) + "="
        strB = strB + " " + str(a) + "-" + str(b) + "=" + str(a - b)

    count = count + 1
    if count == 1000:
        break

# 写文件
with open('c:/学生用卷.txt', 'w',encoding='utf-8') as f:
    f.write(strA)

with open('c:/家长用卷.txt', 'w',encoding='utf-8') as f:
    f.write(strB)