HTML5图片上传预处理，一个只有HTML5前端上传页面的插件没有后台处理的，可以拿去直接用哦~对HTML5有兴趣的朋友可以研究一下。样式丑了点，但是还可以代码：<!DOCTYPE html> <html> <head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1"><title>PHP中文网</title> </head> <body><script>window.onload = function () {var input = document.createElement(input);input.type = file...
We saw the little game Marmot made for Mole's lunch. Now it's Marmot's dinner time and, as we all know, Marmot eats flowers. At every dinner he eats some red and white flowers. Therefore a dinner can be represented as a sequence of several flowers, some of them white and some of them red. But, for a dinner to be tasty, there is a rule: Marmot wants to eat white flowers only in groups of sizek. ...
B. OR in Matrix time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output 题目链接： http://codeforces.com/contest/486/problem/B Lets define logical OR as an operation on two logical values (i. e. values that belong to the set {0,?1}) that is equal to 1 i...
趁这几天有空，了解一下css预处理的知识 less简介 Less 是一个Css 预编译器,意思指的是它可以扩展Css语言,添加功能如允许变量(variables),混合(mixins),函数(functions) 和许多其他的技术，让你的Css更具维护性，主题性，扩展性。 Less 可运行在 Node 环境,浏览器环境和Rhino环境.同时也有3种可选工具供你编译文件和监视任何改变。 语法 变量 声明一个变量： @width：100px；.test { width: @width;} 混合 .bor...