如何使用 asyncio 在 Streamlit 中运行子进程并显示输出
以下示例使用 subprocess 运行命令并在 Streamlit 应用中显示输出。它使用 asyncio 异步运行子进程，使用 st.code() 显示输出。
注意，这不提供输出的实时显示。子进程先运行，只有在完成后，输出才显示在 Streamlit 应用中。
streamlit_subprocess_simple.py
import streamlit as st
import asyncio
import sys
async def run_subprocess():
process = await asyncio.create_subprocess_exec(
'ping', '-c', '10', '1.1.1.1',
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.PIPE,
)
stdout, stderr = await process.communicate()
return stdout.decode(), stderr.decode()
async def main():
st.write("Running subprocess...")
stdout, stderr = await run_subprocess()
st.write("Subprocess output:")
st.code(stdout)
st.write("Subprocess errors:")
st.code(stderr)
if __name__ == '__main__':
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