#-*- coding:utf-8 -*-

__author__ = 'zhengbiqing 460356155@qq.com'

__doc__ = """武汉市光谷一小二年级数学口算自动出题程序 2017-05-31"""

from random importrandint

sym= ['+', '-']#当前文件夹下创建口算题目文件math.txt

fobj = open('math.txt', 'w')defbase_exei_oneline(pmin, pmax, mmin, mmax, multimin, multimax, divmin, divmax):'''pmin,pmax:加数、被加数最小最大值

mmin,mmax:减法转换成加法后，加数、被加数最小最大值

multimin,multimax:乘数、被乘数最小最大值

divmin,divmax:除法转换成乘法后，乘数、被乘数最小最大值'''

#plus：加法算式，rjust(2)：按2位数右对齐

plus = str(randint(pmin, pmax)).rjust(2) + '+' + str(randint(pmin, pmax)).rjust(2) + '='

#minus：减法算式

minus1 =randint(mmin, mmax)

minus2=randint(mmin, mmax)

minussum= minus1 +minus2

minus= str(minussum).rjust(2) + '-' + str(minus1).rjust(2) + '='

#multi：乘法算式

multi1 =randint(multimin, multimax)

multi2=randint(multimin, multimax)

multi= str(multi1).rjust(2) + 'x' + str(multi2).rjust(2) + '='

#div：除法算式

div1 =randint(divmin, divmax)

div2=randint(divmin, divmax)

divmulti= div1 *div2

div= str(divmulti).rjust(2) + '/' + str(div1).rjust(2) + '='lineitem=[plus, minus, multi, div]

line= (18 * ' ').join(lineitem)printline

fobj.writelines(line+ '\r\n')#4列x10行道加、减、乘、除基本题，每行加、减、乘、除题各1道

defbase_exeicise():for col in range(10):

base_exei_oneline(1, 20, 1, 50, 1, 9, 1, 9)#类型1算式：... +/- ... +/- ...

def type1_str(summin=1, summax=100):'''summin,summax:允许总和的最小最大值'''sym1= sym[randint(0, 1)]

sym2= sym[randint(0, 1)]if sym1 == '+' and sym2 == '+':

sum_= randint(summin + 2, summax)

first= randint(summin, sum_ - 2)

second= sum_ -first

second= randint(summin, second - 1)

third= sum_ - first -secondelif sym1 == '+' and sym2 == '-':

sum_= randint(summin + 1, summax)

first= randint(summin, sum_ - 1)

second= sum_ -first

third=randint(summin, sum_)elif sym1 == '-' and sym2 == '+':

first= randint(summin + 1, summax)

second=randint(summin, first)

third= randint(first -second, summax)elif sym1 == '-' and sym2 == '-':

first= randint(summin + 2, summax)

second=randint(summin, first)

third= first -second

third=randint(summin, third)

arithmetic= str(first).rjust(2) + sym1 + str(second).rjust(2) + sym2 + str(third).rjust(2)printarithmeticreturnarithmetic#类型2算式：... +/- ... x ...

def type2_str(multimin=1, multimax=9, summin=1, summax=100):'''multimin,multimax:乘数、被乘数最小最大值

summin,summax:允许总和的最小最大值'''sym1= sym[randint(0, 1)]

second=randint(multimin, multimax)

third=randint(multimin, multimax)

multi= second *thirdif sym1 == '+':

first= randint(summin, summax -multi)else:

first=randint(multi, summax)

arithmetic= str(first).rjust(2) + sym1 + str(second).rjust(2) + 'x' + str(third).rjust(2)printarithmeticreturnarithmetic#类型3算式：(... +/- ...) / ...

def type3_str(multimin=1, multimax=9, summin=1, summax=100):'''multimin,multimax:乘数、被乘数最小最大值

summin,summax:允许总和的最小最大值'''sym1= sym[randint(0, 1)]

second=randint(multimin, multimax)

third=randint(multimin, multimax)

multi= second *thirdif sym1 == '+':

first=randint(summin, multi)

second= multi -firstelse:

second= randint(summin, summax -multi)

first= multi +second

arithmetic= '(' + str(first).rjust(2) + sym1 + str(second).rjust(2) + ')' + '/' + str(third).rjust(2)printarithmeticreturnarithmetic#生成一套题

defoneday_homework():#基本题

base_exeicise()#类型1题

plus1 =type1_str()

plus2=type1_str()#类型2题

plus3 =type2_str()#类型3题

plus4 =type3_str()

plus5=type3_str()#类型1、2题打印一行

line =[plus1, plus2, plus3]

lines= (29 * ' ').join(line)printlines

fobj.writelines(lines+ '\r\n' * 4)#类型3题打印一行

line =[plus4, plus5]

lines= (29 * ' ').join(line)printlines

fobj.writelines(lines+ '\r\n' * 4)

fobj.writelines(r'用时______分钟 对______题(共45题) 家长签名：')#一张A4纸上下各打印1份

oneday_homework()

fobj.writelines('\r\n' * 6)

oneday_homework()

fobj.close()