撤消上次的操作.

游戏通过按键控制 部分代码： #include "gamewidget.h" #define ROW 13 #define COL 16 #define UP 0 #define DOWN 1 #define LEFT 2 #define RIGHT 3 GameWidget::GameWidget(QWidget *parent) :QWidget(parent) { this->setAutoFillBackground(true);//覆盖 this->resize(480,270); this->setWindowIcon(QIcon("img/icon.jpg")); this->setWindowTitle("贪吃蛇"); QPalette palette; palette.setBrush(QPalette::Background,QBrush((QPixmap)"img/bjt.png")); this->setPalette(palette); //按扭区 leftbtn=new QPushButton(this); leftbtn->setIcon((QIcon)"img/zuo.png"); leftbtn->setIconSize(QSize(40,40)); leftbtn->setGeometry(QRect(340,180,40,40)); leftbtn->setFlat(true); rightbtn=new QPushButton(this); rightbtn->setIcon((QIcon)"img/you.png"); rightbtn->setIconSize(QSize(40,40)); rightbtn->setGeometry(QRect(430,180,40,40)); rightbtn->setFlat(true

库存管理系统是所有计算排序的详细信息和产品详细信息、 销售详细信息的过程，在此系统中保存的股票的详情。

显示进度，很好看的-show progress and a good read

在下拉列表中显示多列,软件类型： 国产软件 / 免费版 / 控件开发 -In the drop-down list to display multiple columns

BCB编程技巧――文件切割机-BCB programming skills-- paper cutting machine

.写一个程序，能够读一行 string, 然后打出 最长的 那个 substring p （就是最长的小分句），并且那个小分句要求出现超过一次的。如果有超过1个那样的substring, 只要打出那个字母顺序排后面的-. To write a program that can read his string, and then played the longest substring p (is the longest small clause), and request that a small clause appears more than once. If there is more than one kind of substring, as long as the shot was behind schedule in alphabetical order

快速查找数组中重复值： 实现原理： （1）首先保证数组要排序。 （2）利用二分查找法，找到其中一个值，再找前驱节点和后继节点。-Fast search duplicate array values: the realization of the principle: (1) First of all, to ensure that the array to sort. (2) the use of binary search method to find one of the values, find pre-node and subsequent nodes.

This the core source for reliable inbound file watching and processing needed for edi.-This is the core source for reliable inbound file watching and processing needed for edi.

keyboard event change by wince