小编Tej*_*713的帖子

我是NodeJS的新手.我正在尝试在Eclipse中构建一个poll应用程序.当我创建"民意调查"项目时,这个代码中有"app.js"文件:

var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(__dirname + '/public/favicon.ico'));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, …

在下面的代码中,

#include<stdio.h>
int main()
{
    int k,sum;
    for(k=7;k>=0;sum=k--)
        printf("%d \n",sum);

    return 0;
}

输出是:

0
7
6
5
4
3
2
1   

我想知道这个循环是如何执行的,为什么不在最后打印0？