1.新建一个aspx页面生成验证码图像 using System; using System.Data; using System.Configuration; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebC
C# DateTime的11种构造函数 别的也不多说没直接贴代码 using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Text.RegularExpressions; using System.Threading; using System.Threading.Tasks; namespace
1.在公共类ImageHelper中编写公共方法,产生随机验证码 /// <summary> /// 产生随机验证码 /// </summary> /// <returns></returns> public string GetString() { string randString = ""; Random random = new Random(); do { //使用DateTime.Now.Millisecond作为生成随机数的