加载中…2020.01.二年级寒假——自动随机生成加减乘除的python实现
(2020-01-06 15:43:40)
标签：
python竖式计算算术题自动出题 |
分类： 技术分享 |
寒假马上要开始了，熊孩子的计算能力一如既往的差，学渣老爹继续根据学习进度自动生成寒假作业。不多说了，直接上代码，本着能用就好的原则，并没有调优，也没有把对应功能抽成函数。
import random
string = ""
for day in range(1, 31):
string = string + "\n快乐寒假第 " + str(day) + " 天：\n（１）快速口算\n"
#用来记录每行算术题的个数
num = 0
#生成每天２０道加减乘除
for i in range(1, 13):
flag = random.choice([" + ", " － ", " × ", " ÷ "])
exp = ""
# 如果是加号，保证两个数都不超过50，目前学的都是100以内的数
if flag == " + ":
a = str(random.randint(1, 50)).ljust(2, " ")
b = str(random.randint(1, 50)).ljust(2, " ")
exp = a + flag + b
# 如果是减号，保证被减数和减数都小于等于100即可
if flag == " － ":
a = random.randint(1, 100)
b = random.randint(1, 100)
# 保证较大的数作为被减数
if a < b:
tmp = a
a = b
b = tmp
a = str(a).ljust(2, " ")
b = str(b).ljust(2, " ")
exp = a + flag + b
# 如果是乘号，保证两个数都小于10即可
if flag == " × ":
a = str(random.randint(0, 9)).ljust(2, " ")
b = str(random.randint(0, 9)).ljust(2, " ")
exp = a + flag + b
# 如果是除号，保证在乘法口诀范围内即可
if flag == " ÷ ":
a = random.choice(
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 40,
42, 45, 48, 49, 54, 56, 63, 64, 72, 81])
if a == 81:
b = 9
if a == 72:
b = random.choice([1, 8, 9])
if a == 64:
b = 8
if a == 63:
b = random.choice([1, 7, 9])
if a == 56:
b = random.choice([1, 7, 8])
if a == 54:
b = random.choice([1, 6, 9])
if a == 49:
b = 7
if a == 48:
b = random.choice([1, 6, 8])
if a == 45:
b = random.choice([1, 5, 9])
if a == 42:
b = random.choice([1, 6, 7])
if a == 40:
b = random.choice([1, 5, 8])
if a == 36:
b = random.choice([1, 4, 9])
if a == 35:
b = random.choice([1, 5, 7])
if a == 32:
b = random.choice([1, 4, 8])
if a == 30:
b = random.choice([1, 6, 5])
if a == 28:
b = random.choice([1, 4, 7])
if a == 27:
b = random.choice([1, 3, 9])
if a == 25:
b = random.choice([1, 5])
if a == 24:
b = random.choice([1, 3, 4, 6, 8])
if a == 21:
b = random.choice([1, 3, 7])
if a == 20:
b = random.choice([1, 4, 5])
if a == 18:
b = random.choice([1, 2, 3, 6, 9])
if a == 16:
b = random.choice([1, 2, 4, 8])
if a == 15:
b = random.choice([1, 3, 5])
if a == 14:
b = random.choice([1, 2, 7])
if a == 12:
b = random.choice([1, 2, 3, 4, 6])
if a == 10:
b = random.choice([1, 2, 5])
if a == 9:
b = random.choice([1, 3, 9])
if a == 8:
b = random.choice([1, 2, 4, 8])
if a == 7:
b = random.choice([1, 7])
if a == 6:
b = random.choice([1, 2, 3, 6])
if a == 5:
b = random.choice([1, 5])
if a == 4:
b = random.choice([1, 2, 4])
if a == 3:
b = random.choice([1, 3])
if a == 2:
b = random.choice([1, 2])
if a == 1:
b = 1
if a == 0:
b = random.randint(1, 9)
a = str(a).ljust(2, " ")
b = str(b).ljust(2, " ")
exp = a + flag + b
if num < 3:
string = string + exp + " =".ljust(7, " ")
num = num + 1
# 达到4个题目，换行
else:
string = string + exp + "=\n"
num = 0
string = string + "（２）提高口算\n"
###用来生成两个运算符的算式
# 用来记录每行算术题的个数
num = 0
for i in range(1, 7):
result = 0
flag = random.choice([" + ", " － ", " × ", " ÷ "])
exp = ""
# 如果是加号，保证两个数都不超过50，目前学的都是100以内的数
if flag == " + ":
a = str(random.randint(1, 50)).ljust(2, " ")
b = str(random.randint(1, 50)).ljust(2, " ")
exp = a + flag + b
result = int(a) + int(b)
# 如果是减号，保证被减数和减数都小于等于100即可
if flag == " － ":
a = random.randint(1, 100)
b = random.randint(1, 100)
# 保证较大的数作为被减数
if a < b:
tmp = a
a = b
b = tmp
a = str(a).ljust(2, " ")
b = str(b).ljust(2, " ")
exp = a + flag + b
result = int(a) - int(b)
# 如果是乘号，保证两个数都小于10即可
if flag == " × ":
a = str(random.randint(0, 9)).ljust(2, " ")
b = str(random.randint(0, 9)).ljust(2, " ")
exp = a + flag + b
result = int(a) * int(b)
# 如果是除号，保证在乘法口诀范围内即可
if flag == " ÷ ":
a = random.choice(
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 40,
42, 45, 48, 49, 54, 56, 63, 64, 72, 81])
if a == 81:
b = 9
if a == 72:
b = random.choice([1, 8, 9])
if a == 64:
b = 8
if a == 63:
b = random.choice([1, 7, 9])
if a == 56:
b = random.choice([1, 7, 8])
if a == 54:
b = random.choice([1, 6, 9])
if a == 49:
b = 7
if a == 48:
b = random.choice([1, 6, 8])
if a == 45:
b = random.choice([1, 5, 9])
if a == 42:
b = random.choice([1, 6, 7])
if a == 40:
b = random.choice([1, 5, 8])
if a == 36:
b = random.choice([1, 4, 9])
if a == 35:
b = random.choice([1, 5, 7])
if a == 32:
b = random.choice([1, 4, 8])
if a == 30:
b = random.choice([1, 6, 5])
if a == 28:
b = random.choice([1, 4, 7])
if a == 27:
b = random.choice([1, 3, 9])
if a == 25:
b = random.choice([1, 5])
if a == 24:
b = random.choice([1, 3, 4, 6, 8])
if a == 21:
b = random.choice([1, 3, 7])
if a == 20:
b = random.choice([1, 4, 5])
if a == 18:
b = random.choice([1, 2, 3, 6, 9])
if a == 16:
b = random.choice([1, 2, 4, 8])
if a == 15:
b = random.choice([1, 3, 5])
if a == 14:
b = random.choice([1, 2, 7])
if a == 12:
b = random.choice([1, 2, 3, 4, 6])
if a == 10:
b = random.choice([1, 2, 5])
if a == 9:
b = random.choice([1, 3, 9])
if a == 8:
b = random.choice([1, 2, 4, 8])
if a == 7:
b = random.choice([1, 7])
if a == 6:
b = random.choice([1, 2, 3, 6])
if a == 5:
b = random.choice([1, 5])
if a == 4:
b = random.choice([1, 2, 4])
if a == 3:
b = random.choice([1, 3])
if a == 2:
b = random.choice([1, 2])
if a == 1:
b = 1
if a == 0:
b = random.randint(1, 9)
a = str(a).ljust(2, " ")
b = str(b).ljust(2, " ")
exp = a + flag + b
result = int(a) / int(b)
flag = random.choice([" + ", " － "])
# 如果是加号，保证和不超过１００，目前学的都是100以内的数
if flag == " + ":
a = str(random.randint(1, 100 - result)).ljust(2, " ")
exp = exp + flag + a
# 如果是减号，保证能够减得着即可
if flag == " － ":
a = str(random.randint(0, result)).ljust(2, " ")
exp = exp + flag + a
if num < 2:
string = string + exp + " =".ljust(7, " ")
num = num + 1
# 达到3个题目，换行
else:
string = string + exp + "=\n"
num = 0
string = string + "（３）竖式计算\n"
###用来生成需要运用竖式运算的题目
# 用来记录每行算术题的个数
num = 0
for i in range(1, 4):
result = 0
flag = random.choice([" + ", " － "])
exp = ""
# 如果是加号，保证两个数都不超过50，目前学的都是100以内的数
if flag == " + ":
a = str(random.randint(1, 50)).ljust(2, " ")
b = str(random.randint(1, 50)).ljust(2, " ")
exp = a + flag + b
result = int(a) + int(b)
# 如果是减号，保证被减数和减数都小于等于100即可
if flag == " － ":
a = random.randint(1, 100)
b = random.randint(1, 100)
# 保证较大的数作为被减数
if a < b:
tmp = a
a = b
b = tmp
a = str(a).ljust(2, " ")
b = str(b).ljust(2, " ")
exp = a + flag + b
result = int(a) - int(b)
flag = random.choice([" + ", " － "])
# 如果是加号，保证和不超过１００，目前学的都是100以内的数
if flag == " + ":
a = str(random.randint(1, 100 - result)).ljust(2, " ")
exp = exp + flag + a
# 如果是减号，保证能够减的着即可
if flag == " － ":
a = str(random.randint(0, result)).ljust(2, " ")
exp = exp + flag + a
if num < 2:
string = string + exp + " =".ljust(7, " ")
num = num + 1
# 达到3个题目，换行
else:
string = string + exp + "=\n\n\n\n\n"
num = 0
print(string)
最终运行效果如下图所示
![]( "2020.01.二年级寒假——自动随机生成加减乘除的python实现")
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