网上购物体系统的模拟，模拟了一张地图，地图的大小可以用户输入，程序最后计算出最大用户联盟的组成-online shopping body system simulation, simulation of a map, the map can be the size of user input, the final procedures calculated largest user of the composition of Union

php中图片上传打水印，可以打文字水印和图片水印，同时能够生成大图和小图的程序，暨缩略图和原图的程序源码-php upload pictures to play in the watermark, the watermark can play text and image watermark, and can generate a large map and small map of the program, cum thumbnails and full size of the program

Supermarket store manager decided to map all areas of the display at his store, and build a computational system that contains relevant information about each product. The system is supposed to help calculate the costs and potential profits, and h