使用CGI Python脚本刷新网页

问题描述：

我有一个非常简单的网页，该网页用于在Raspberry Pi上旋转步进电机。我的html文件是这样的：

I have a very simple web page which I'm using in order to rotate a stepper motor on Raspberry Pi. My html file is this:

<html>
<head>
<script Language="Javascript">

function ccw()
{
  document.location="cgi-bin/rotate_45_ccw.py";
}

function cw()
{
  document.location="cgi-bin/rotate_45_cw.py";
}

</script>
</head>

<body>
  <div style="text-align:center">
    <h1>Raspberry Pi GPIO</h1>
<br>
  <button type="button", id="ccw", onclick="ccw()", value="value CCW">Rotate CCW</button>
  <button type="button", id="cw", onclick="cw()", value="value CW">Rotate CW</button>
<br>
  </div>

</body>
</html>

我想要做的是在执行两个脚本之后，要刷新的页面（以便用户可以再次单击任一按钮）。我想，愚蠢的方式是让Python脚本输出上述html代码。有没有更聪明/更简便的方法？

What I want to do is after either of the scripts is executed, for the page to be refreshed (so that the user can click again on either button). The dumb way I guess, is for the Python scripts to output the above html code. Is there a smarter/easier way?

谢谢！

答

经过大量搜索后，我终于明白了！因此，为了重定向到主页，我必须在python3脚本的末尾添加以下 print 语句：

After a LOT of searching around I finally got it right! So, in order to be redirected to the home page, I have to add the following print statements at the end of my python3 script:

print ("Content-type: text/html\n\n")
print ("<html><body>\n")
print ("<meta http-equiv=\"refresh\" content=\"0; url = http://192.168.1.109\" />")
print ("</body></html>")

使用CGI Python脚本刷新网页

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