How to solve the problem of 'cannot post' error when using submit form under Nodejs

<span style="font-size:18px;"><form action="/registOK" method="get"> 
<p>用户名：<input type="text" id="userName" name="userName"></p> 
<p>密码：<input type="password" id="passWord" name="passWord"></p> 
<p><input type="submit" value="注册" id="zhuce"></p></form></span>

The registration form I wrote was submitted to the registerOK page using a post request. After submission, a "cannot post" error was displayed. The express template engine used, the code is as follows:

app.get("/registOK",function (req,res,next) { 
res.render("registOK"); 
});

Later, I searched on the Internet and found that routing generally uses "get", but if you specify "post" for form submission, you must also add one to the routing:

<span style="font-size:18px;">app.post("/registOK",function (req,res,next) { 
res.render("registOK"); 
});</span>

ok! The problem is solved!

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