测试参数化，java代码代码怎么写？ main方法里

一、测试参数化，java代码代码怎么写？ main方法里

package test;

public class Testa {

public static void main(String[] args) {

// 方法的调用方式(可以测试方法是否正确)

int re = new Testa().seleSing(123);

System.out.println(re);

}

  public int seleSing(int singID) {

  // 方法体

  return singID;

  }

}你是想问这个吗?如果解决了你的问题,记得采纳,嘻嘻

二、求十六进制转十进制的C代码！

void main()

{

int n;

scanf(%x,&n); //以十六进制形式接收输入的数

printf(%d\n,n);//以十进制形式输出数

}

三、要一个随机验证码的html代码

#region 生成随机数

    public static string RandomNum(int n)

    {

    string strchar = 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z;

    string[] VcArray = strchar.Split(',');

    string VNum = ;

    int temp = -1;

    Random rand = new Random();

    for (int i = 1; i < n + 1; i++)

    {

    if (temp != -1)

    {

    rand = new Random(i * temp * unchecked((int)DateTime.Now.Ticks));

    }

    int t = rand.Next(61);

    if (temp != -1 && temp == t)

    {

    return RandomNum(n);

    }

    temp = t;

    VNum += VcArray[t];

    }

    return VNum;

    }

    #endregion

    #region 验证码图片

    public  static void CheckCodes(string M_CheckCode)

    {

    Random rand = new Random();

    int iwidth = (int)(M_CheckCode.Length * 15);

    System.Drawing.Bitmap image = new System.Drawing.Bitmap(iwidth, 22);

    Graphics g = Graphics.FromImage(image);

    g.Clear(Color.White);

    //画图片的背景噪音线20条

    for (int i = 0; i < 20; i++)

    {

    int x1 = rand.Next(image.Width);

    int x2 = rand.Next(image.Width);

    int y1 = rand.Next(image.Height);

    int y2 = rand.Next(image.Height);

    g.DrawLine(new Pen(Color.Silver), x1, x2, y1, y2);

    }

    //定义颜色

    Color[] c = { Color.Black, Color.Red, Color.DarkBlue, Color.Green, Color.Orange, Color.Brown, Color.DarkCyan, Color.Purple, Color.YellowGreen };

    //定义字体

    string[] font = { Verdana, Microsoft Sans Serif, Comic Sans MS, Arial, 宋体, 新宋体 };

    //随机输出噪点

    for (int i = 0; i < 50; i++)

    {

    int x = rand.Next(image.Width);

    int y = rand.Next(image.Height);

    g.DrawRectangle(new Pen(Color.LightGray, 0), x, y, 1, 1);

    }

    //输出不同字体和颜色的验证码字符

    for (int i = 0; i < M_CheckCode.Length; i++)

    {

    int cindex = rand.Next(7);

    int findex = rand.Next(6);

    Font f = new System.Drawing.Font(font[findex], 12, System.Drawing.FontStyle.Bold);

    Brush b = new System.Drawing.SolidBrush(c[cindex]);

    int ii = 4;

    if ((i + 1) % 2 == 0)

    {

    ii = 2;

    }

    g.DrawString(M_CheckCode.Substring(i, 1), f, b, 3 + (i * 12), ii);

    }

    //画一个边框

    g.DrawRectangle(new Pen(Color.Black, 0), 0, 0, image.Width - 1, image.Height - 1);

    //输出到浏览器

    System.IO.MemoryStream ms = new System.IO.MemoryStream();

    image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);

    HttpContext.Current.Response.ClearContent();

    //Response.ClearContent();

    HttpContext.Current.Response.ContentType = image/gif;

    HttpContext.Current.Response.BinaryWrite(ms.ToArray());

    g.Dispose();

    image.Dispose();

    }

    #endregion

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