如何在python中使用批处理代码生成大字符串？

import subprocess

# 定义批处理代码
batch_code = """
@echo off
setlocal enabledelayedexpansion

set result=
for /L %%i in (1,1,10000) do (
    set result=!result!%%i
)

echo !result!
"""

# 将批处理代码保存到一个批处理文件
batch_file = "generate_string.bat"
with open(batch_file, "w") as file:
    file.write(batch_code)

# 执行批处理文件并获取输出结果
output = subprocess.check_output(batch_file, shell=True, universal_newlines=True)

# 输出结果
print(output)