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2014-04-17代码游戏 #32
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var express = require('express');
var app = express();
var page = '<form method="post" action="/"><input type="text" name="username"> <input type="submit"></form>'
// app.use(express.json()); // to support JSON-encoded bodies
// app.use(express.urlencoded()); // to support URL-encoded bodies
app.use(express.bodyParser());
app.get('/', function(req, res){
res.send(page);
});
app.post('/', function(req, res) {
var num = req.body.username;
var isOdd = num % 2 == 0 ? "Even" : "Odd";
res.send('The Num is: ' + isOdd);
});
var server = app.listen(3000, function() {
console.log('Listening on port %d', server.address().port);
}); |
server.js var http = require("http"),
url = require("url"),
path = require("path"),
fs = require("fs");
http.createServer(function (req, res) {
var pathname=__dirname+url.parse(req.url).pathname;
if (path.extname(pathname)=="") {
pathname+="/";
}
if (pathname.charAt(pathname.length-1)=="/"){
pathname+="index.html";
}
fs.exists(pathname,function(exists){
if(exists){
switch(path.extname(pathname)){
case ".html":
res.writeHead(200, {"Content-Type": "text/html"});
break;
case ".js":
res.writeHead(200, {"Content-Type": "text/javascript"});
break;
case ".css":
res.writeHead(200, {"Content-Type": "text/css"});
break;
case ".gif":
res.writeHead(200, {"Content-Type": "image/gif"});
break;
case ".jpg":
res.writeHead(200, {"Content-Type": "image/jpeg"});
break;
case ".png":
res.writeHead(200, {"Content-Type": "image/png"});
break;
default:
res.writeHead(200, {"Content-Type": "application/octet-stream"});
}
fs.readFile(pathname,function (err,data){
res.end(data);
});
} else {
res.writeHead(404, {"Content-Type": "text/html"});
res.end("<h1>404 Not Found</h1>");
}
});
}).listen(8080, "127.0.0.1");
console.log("Server running at http://127.0.0.1:8080/"); index.js <!DOCTYPE html>
<html>
<head>
<title>bingo test</title>
</head>
<body>
hello bingo<br/>
<input type='text' id='txt'><br/>
<button type="button" id='btn'>Test!</button><br/>
<form action="" method="get">
input number: <input type="text" name="fname" />
<input type="submit" value="Submit" />
</form>
</body>
</html>
<script type="text/javascript" src="bingo.js"></script> bingo.js // 发布按钮
document.getElementById("btn").onclick = function () {
//alert("bingo");
var num = document.getElementById("txt").value;
if(num%2 == 0) {
alert("偶数");
} else if(num%2==1) {
alert("奇数");
} else {
alert("不是整数");
}
}; |
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node.js月过去一半了,大家应该对此也有了一定的理解。之前我们已经使用node.js进行了文件处理、网页抓取,便于我们的工作生活。接下来我们要了解下node.js碉堡的特点了。
what?可以用js来整服务器?前端程序猿的福音来了,妈妈终于不用担心我被后端欺负了。不错。今天我们就是要用node.js做个网站,丢开你的Apache、Nginx、tomcat吧。
题目要求:
1、网站!看清楚了,不是网页,不是写个js跑跑就行了,而是要可以被其他PC机的浏览器使用的哦。
2、网站提供数字是否是奇数/偶数的判断功能,页面随意,可看下示例:
大致上需要提供get(页面显示)、post(提交输入的内容)、数字判断功能。提交也可以用form表单,判断结果输出用别的方式也行,不过不能使用服务端的console输出,得给用户看到。
3、如果时间够的话,请再增加判断数字是质数/合数的功能。
4、无法在现场携带电脑展示的,请提供网站地址。
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