更改字符串中的数字r

import re

def replace_numbers_with_r(string):
    pattern = r'\d'  # 正则表达式，匹配数字
    replaced_string = re.sub(pattern, 'r', string)  # 将数字替换为字符'r'
    return replaced_string

# 示例用法
original_string = 'abc123def456'
modified_string = replace_numbers_with_r(original_string)
print(modified_string)  # 输出：abcrdefr

def replace_r_with_number(string):
    replaced_string = ''
    for char in string:
        if char.isdigit():  # 判断字符是否是数字
            replaced_string += '5'  # 将数字r替换为数字5
        else:
            replaced_string += char
    return replaced_string

# 示例用法
original_string = 'abc1r3defr56'
modified_string = replace_r_with_number(original_string)
print(modified_string)  # 输出：abc153def556

def calculate_with_r(string):
    r_value = 10  # 假设r的值为10
    calculated_value = ''
    for char in string:
        if char == 'r':
            calculated_value += str(r_value)  # 将数字r替换为变量r的值
        else:
            calculated_value += char
    return calculated_value

# 示例用法
original_string = 'abc1r3defr56'
calculated_string = calculate_with_r(original_string)
print(calculated_string)  # 输出：abc103def1056