外贸建站之图片预加载JS代码分享 function preloadimg() { setTimeout(function() { new Image().src = "images/201708/source_img/6590_G_1502767440205.jpg"; new Image().src = ("images/201708/goods_img/6590_P_1502767440094.jpg"); new Image().src = ("im
c# 图片加密解密的实例代码. 代码: using System; using System.Collections.Generic; using System.Text; using System.Security.Cryptography; using System.IO; namespace Net.Template.Common { /// <summary> /// 对图片的加密和解密 /// </summary> public class DEncrypt4ImageH
using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.IO; using System.Linq; using System.Web; namespace Web.Admin.handler { /// <summary> /// ValidateCode 的摘