Python代码使用re模块实现从字符串中找出COM5的数字的值

Sure, for your question, you can use the following Python code with re module to find the value of COM5:

import re

input_string = "This is a test string COM5 with the value of 123."

match = re.search(r'COM5\s*([\d]+)', input_string)

if match:
    value = match.group(1)
    print("The value of COM5 is: ", value)
else:
    print("COM5 not found in the input string.")

For your information, COM5 is typically used to refer to serial communication ports on Windows systems.