将数字增加1

Question

我想看到label6显示用户选择号码的正确次数.而label7显示用户选择错误的次数.它不会增加一个.

错误1运算符'++'不能应用于'string'类型的操作数错误2运算符'++'不能应用于'string'类型的操作数

private void button1_Click(object sender, EventArgs e)
    {
        string correct="0";
        string incorrect="0";
        RandomNumber(0,99);
        button2.Enabled = true ;
        button1.Enabled = false;
        label3.Visible = true;
        if (textBox1.Text == label1.Text)
            label3.Text=("Winner");
               label6.Text = correct +1;
               if (textBox1.Text != label1.Text)
                   label7.Text = incorrect= +1;
            label3.Text=(string.Format("Sorry - You Lose, The number is {0}",   label1.Text));

    }

编辑(从OP回答他自己的问题):

我已经尝试了你的建议方式,但每次我猜错了数字都不会增加一个.

private void button1_Click(object sender, EventArgs e)


    {
        int correct=0;
        int incorrect=0;
        RandomNumber(0,99);
        button2.Enabled = true ;
        button1.Enabled = false;
        label3.Visible = true;
        if (textBox1.Text == label1.Text)
        {
            label3.Text = ("Winner");
            label6.Text = (++correct).ToString(); 
        }

        else if (textBox1.Text != label1.Text)
        {
            label7.Text = (incorrect+1).ToString(); 

            label3.Text = (string.Format("Sorry - You Lose, The number is {0}", label1.Text));
        }


    }

Answer 1

它看起来并不像你坚持correct和incorrect

创建属性:

public int Correct { get; set; }
public int Incorrect { get; set;}

然后:

private void button1_Click(object sender, EventArgs e)
{
   RandomNumber(0,99);
   button2.Enabled = true ;
   button1.Enabled = false;
   label3.Visible = true;

   if (textBox1.Text == label1.Text)
   {
     label3.Text=("Winner");
     label6.Text = (++this.Correct).ToString();
   }
   else
   {  
      label3.Text=(string.Format("Sorry - You Lose, The number is {0}", label1.Text));
      label7.Text = (++this.Incorrect).ToString();
   } 
}

Answer 2

您正在存储正确和不正确的变量string.

请int改为使用:

int correct = 0;
int incorrect = 0;

并将您的代码更改为:

correct++;
label6.Text = correct.ToString();

和:

incorrect++;
label7.Text = incorrect.ToString();