#!/usr/bin/env python
# -*- coding:utf-8 -*-
# by wk
#1 - 2 * ( (60-30 +(-9-2-5-2*3-5/3-40*4/2-3/5+6*3) * (-9-2-5-2*5/3 + 7 /3*99/4*2998 +10 * 568/14 )) - (-4*3)/ (16-3*2) )
import re
def Remove_parentheses(my_cal):
new_cal = re.search("\([^()]*\)",my_cal)
new_cal2 = new_cal
# print(new_cal2)
# new_cal3 = re.search("[^(].*[^)]",new_cal2)
return new_cal2
def Calculation(old_my_cal):
new_cal6 = Remove_duplicates(old_my_cal)
new_cal5 = re.search("[^(].*[^)]", new_cal6)
# print('gjgkjh',new_cal5.group())
new_cal,new_cal4 = Remove_dupli_md(new_cal5.group())
# new_cal = re.split("[+-]",new_cal5.group())
# new_cal4 = re.findall("[+-]",new_cal5.group())
print('t1',new_cal)
print('t2',new_cal4)
new_cal,new_cal4 = Remove_spaces(new_cal,new_cal4)
print('list',new_cal)
# print(new_cal4)
for k,v in enumerate(new_cal):
if '*' in v or '/' in v:
new_cal2 = re.split("[*/]",v)
new_cal3 = re.findall("[*/]",v)
# print(new_cal2)
# print(new_cal3)
res = None
for k2,v2 in enumerate(new_cal2):
if res:
if new_cal3[k2-1] == '*':
res *= float(v2)
elif new_cal3[k2-1] == '/':
res /= float(v2)
else:
res = float(v2)
new_cal[k] = res
# print('a',new_cal,'b',new_cal4)
result_as = Add_subtract(new_cal, new_cal4)
return result_as
def Add_subtract(my_cal,my_cal2):
# print('aaa',my_cal)
# print('bbb',my_cal2)
res = None
for k,v in enumerate(my_cal):
if res:
if my_cal2[k-1] == '+':
res += float(v)
elif my_cal2[k-1] == '-':
res -= float(v)
else:
res = float(v)
# print('+++',res)
return res
def Remove_duplicates(formula): #过滤符合
formula = formula.replace("++", "+")
formula = formula.replace("+-", "-")
formula = formula.replace("-+", "-")
formula = formula.replace("--", "+")
formula = formula.replace("- -", "+")
return formula
def Remove_dupli_md(str1): #合并乘除后的加减
res = re.split("[+-]", str1)
res2 = re.findall("[+-]", str1)
for k, v in enumerate(res):
if v.endswith("*") or v.endswith("/"):
res[k] = res[k] + res2[k] + res[k + 1]
del res[k + 1]
del res2[k]
return res,res2
def Remove_spaces(my_list,my_list2): #过滤掉开头的空格
if my_list[0] == '':
my_list[1] = my_list2[0] + my_list[1]
del my_list[0]
del my_list2[0]
return my_list,my_list2
if __name__ == '__main__':
my_cal = "1-2*(( 60-30+(-9-2-5-2* 3-5/3-40*4/2-3/5+6*3)*(-9 -2-5-2*5/3+7/3*99/4*2998+10*568/14))-(-4*3)/(16-3*2))"
# result_as = Add_subtract(result_md,result_md2)
parenthesise_flag = True
while parenthesise_flag:
# print('zzz',my_cal)
result1 = Remove_parentheses(my_cal)
# print('re',result1.group())
if result1:
result_as = Calculation(result1.group())
# print('as',result_as)
my_cal = my_cal.replace(str(result1.group()),str(result_as))
print('new cal',my_cal)
else:
print('\033[41;1m----没拓号了...---\033[0m')
# print('\n\n\033[42;1m最终结果:\033[0m', compute(formula))
print('end',my_cal)
new_my_cal = Remove_duplicates(my_cal)
print(new_my_cal)
res = Calculation(new_my_cal)
print('res',res)
parenthesise_flag = False
