仿騰訊登入驗證碼

protected void page_load(object sender, eventargs e)

protected static int vcode_length = 4;
private static readonly int _width = 80, _height = 35;
//字型集
private static readonly string _font_family = ;
//字型大小集
private static readonly int _font_size = ;
//前景字型顏色集
private static readonly color _color_face = ;
//背景顏色集
private static readonly color _color_background = ;
//文字布局資訊
private static stringformat _dl_format = new stringformat(stringformatflags.noclip);
//左右旋轉角度
private static readonly int _angle = 60;
private string getcheckcode(int codecount)
int t = rand.next(35);
if (temp == t)
temp = t;
randomcode += allchararray[t];
}return randomcode;
}private void createimage(string code)
//交替x,y座標點
px_x = py_x;
px_y = py_y;
}#endregion
//初始化游標的開始位置
g.translatetransform(-5, 2);
#region 繪製校驗碼字串
for (int i = 0; i < code.length; i++)
//反轉
g.rotatetransform(-angle);
//重新定位游標位置
g.translatetransform(-2, -dot.y);
}#endregion}}
using (system.io.memorystream ms = new system.io.memorystream())}}

登入驗證碼

生成驗證碼 指定驗證碼的長度 public static string createvalidatecode int length 生成隨機數字 for int i 0 i length i 抽取隨機數字 for int i 0 i length i 生成驗證碼 for int i 0 i leng...

登入驗證碼C

一.新建乙個checkcode.aspx using system using system.data using system.configuration using system.collections using system.web using system.web.security usi...

註冊登入驗證碼

1 判斷是不是手機號 public boolean ismobileno string mobiles matcher m p.matcher mobiles return m.matches 2 判斷密碼格式是否正確 public boolean iscorrectpassword string ...