从字符串中获取减法

import re

def get_subtraction_from_string(string):
    pattern = r'(\d+)\s*-\s*(\d+)'
    matches = re.findall(pattern, string)
    
    subtraction_list = []
    for match in matches:
        operand1 = int(match[0])
        operand2 = int(match[1])
        subtraction = operand1 - operand2
        subtraction_list.append(subtraction)
    
    return subtraction_list

string = "10 - 5 = 5, 8 - 3 = 5"
result = get_subtraction_from_string(string)
print(result)

[5, 5]