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oral_math.py
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113 lines (91 loc) · 3.23 KB
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# 湘师实验小学二年级数学口算出题，100以内加减法及6以内简单乘法，打印math.txt后练习
from random import randint
sym = [' + ', ' - ']
fobj = open('math.txt', 'w')
fobj.writelines(r'用时______分钟 对______题（共120题） 家长签名：' +
'\r\n')
def pmbase(pmin, pmax, mmin, mmax, multimin, multimax):
# 单加法
plus1 = randint(pmin, pmax - 1)
plus2 = randint(pmin, pmax - plus1)
plus = str(plus1).rjust(2) + ' + ' + str(plus2).rjust(2) + ' ='
# 单减法
minus1 = randint(mmin, mmax)
minus2 = randint(mmin, mmax)
minussum = minus1 + minus2
minus = str(minussum).rjust(2) + ' - ' + str(minus1).rjust(2) + ' ='
# 单加法
plus1 = randint(pmin, pmax - 1)
plus2 = randint(pmin, pmax - plus1)
plus = str(plus1).rjust(2) + ' + ' + str(plus2).rjust(2) + ' ='
# 单乘法
multi1 = randint(multimin, multimax)
multi2 = randint(multimin, multimax)
multi = str(multi1).rjust(2) + ' x ' + str(multi2).rjust(2) + ' ='
baseline = [plus, minus, plus, multi]
line = (12 * ' ').join(baseline)
print(line)
fobj.writelines(line + '\r\n')
def oneline(pmin, pmax, mmin, mmax, multimin, multimax):
# 单加法
plus1 = randint(pmin, pmax - 1)
plus2 = randint(pmin, pmax - plus1)
plus = str(plus1).rjust(2) + ' + ' + str(plus2).rjust(2) + ' ='
# 单减法
minus1 = randint(mmin, mmax)
minus2 = randint(mmin, mmax)
minussum = minus1 + minus2
minus = str(minussum).rjust(2) + ' - ' + str(minus1).rjust(2) + ' ='
# 加减混合
sym1 = sym[randint(0, 1)]
sym2 = sym[randint(0, 1)]
if sym1 == ' + ' and sym2 == ' + ':
temp = randint(3, 100)
first = randint(1, temp - 2)
second = temp - first
second = randint(1, second - 1)
third = temp - first - second
elif sym1 == ' + ' and sym2 == ' - ':
temp = randint(2, 100)
first = randint(1, temp - 1)
second = temp - first
third = randint(1, temp)
elif sym1 == ' - ' and sym2 == ' + ':
first = randint(2, 100)
second = randint(1, first)
third = randint(1, 100 - first + second)
elif sym1 == ' - ' and sym2 == ' - ':
first = randint(3, 100)
second = randint(1, first)
third = first - second
if third <= 1:
third = 1
else:
third = randint(1, third)
pm = str(first).rjust(2) + sym1 + str(second).rjust(2) + sym2 + str(
third).rjust(2) + ' ='
# 乘加减混合
sym1 = sym[randint(0, 1)]
first = randint(multimin, multimax)
second = randint(multimin, multimax)
temp = first * second
if temp <= 10:
if sym1 == ' - ':
third = randint(1, temp)
else:
third = randint(1, 9)
else:
third = randint(1, 9)
mix = str(first).rjust(2) + ' x ' + str(second).rjust(2) + sym1 + str(
third).rjust(2) + ' ='
lineitem = [plus, minus, pm, mix]
line = (8 * ' ').join(lineitem)
print(line)
fobj.writelines(line + '\r\n')
def oral_exeicise():
for col in range(12):
pmbase(1, 100, 1, 50, 1, 6)
for col in range(18):
oneline(1, 100, 1, 50, 1, 6)
oral_exeicise()
fobj.close()