npm install -g express-generator
npm install -g express
express -e calculator cd calculator && npm install
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<form method="post">
<p>计算器</p>
<input type="text" name="num1" value=<%= numa %> /><br />
<input type="text" name="num2" value=<%= numb %> /><br />
<input type="submit" value="计算" />
<p>结果:<%= sum %></p>
</form>
</body>
</html>
var express = require('express');
var router = express.Router();
/* GET home page. */
router.get('/', function(req, res, next) {
res.render('index', {
title: '计算器V1.0 by jdh',
numa: 0,
numb: 0,
sum: 0
});
});
router.post('/', function (req, res) {
console.log("接收:", req.body.num1, req.body.num2);
var sum = parseFloat(req.body.num1) + parseFloat(req.body.num2);
console.log('sum = ',sum);
res.render('index', {
title: '计算器V1.0 by jdh',
// numa: req.body.num1,
// numb: req.body.num2
numa: req.body.num1,
numb: req.body.num2,
sum: sum
});
});
module.exports = router;
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