首先，我想说我还是C＃的初学者，所以在向我解释信息时，请不要使用我不理解的复杂术语。 其次，我完成了大部分工作，我不是要求其他人完成我的工作，我只是在寻求帮助，因为我不明白什么是错的/为什么它不起作用。 第三，我的程序是不完整的，除非我的随机生成器工作，否则我无法完成它。 所以说到这一点，我遇到的问题是当我尝试运行该程序时，系统强调了“随机”这个词。在我的代码的开头，并说
＆＃34;字段初始值设定项不能引用非静态字段，方法或 属性＆＃34 ;.
为什么这样做？如果我把两行代码放在＆＃34; Public Guess()＆＃34;部分然后编译器运行正常，它然后说我的＆＃34; if＆＃34;声明不会工作，因为容器＆＃34; random＆＃34;不存在。我不知道我还能做些什么，我真的非常感谢一些帮助。
我的代码如下：
public partial class Guess : Form
{
/*This is a "Guess the number" program. Then this program is run,
* I want to create two containers for the "TryParse" portion of this program
and then I want a number to be randomly generated for the user to guess, then
I want one last container to count how many guess it took the user.*/
string number;
int guess;
Random random;
int randomnumber;
int counter;
public Guess()
{
/*Once the program is initalized, I want the 2nd button hidden until the first one
is clicked with a value in the textbox*/
InitializeComponent();
btnexe2.Hide();
random = new Random();
randomnumber = random.Next(0, 101);
}
private void btnClose_Click(object sender, EventArgs e)
{
//This closes the program//
Close();
}
private void btnexe1_Click(object sender, EventArgs e)
{
/*This is where I will be doing most of my variable checking. First,
I want to check if the user left the textbox empty, if it is then
display a message box saying to enter a number.*/
if (string.IsNullOrEmpty(tbnumber.Text))
{
MessageBox.Show("Please enter a number from 0-100.");
}
else
{/*If it is not empty, then I want the system to determine if the variable
that has been entered can be converted to a int.*/
number = Convert.ToString(tbnumber.Text);
if (Int32.TryParse(number, out guess))
{
/*If the value can be converted, then i want the system to see if
it is lower, higher, or equal to the random value. Then I want the fist button hidden,
and the second one shown. Then I want to record how many times the user guessed.*/
if (guess < randomnumber)
{
btnexe1.Hide();
btnexe2.Show();
this.BackColor = System.Drawing.Color.LightSeaGreen;
lbloutput.Text = "Too Low";
counter=counter + 1;
}
else if (guess > randomnumber)
{
btnexe1.Hide();
btnexe2.Show();
this.BackColor = System.Drawing.Color.SlateBlue;
lbloutput.Text = "Too High";
counter = counter + 1;
}
else
{
lbloutput.Text = "Good Guess";
counter = counter + 1;
}
}
else
{
/*If the value cannot be converted to a int, then display a message box saying so.*/
MessageBox.Show("This is not a number. Please enter a number between 0-100.");
}
}
}
private void btnexe2_Click(object sender, EventArgs e)
{/*I want to check if the user left the textbox empty, if it is then
display a message box saying to enter a number.*/
if (string.IsNullOrEmpty(tbnumber.Text))
{
MessageBox.Show("Please enter a number from 0-100.");
}
else
{/*If it is not empty, then I want the system to determine if the variable
that has been entered can be converted to a int.*/
number = Convert.ToString(tbnumber.Text);
if (Int32.TryParse(number, out guess))
{
/*If the value can be converted, then I want the system to see if
it is lower, higher, or equal to the random value. Then I want to record how
many times the user guessed.*/
if (guess < randomnumber)
{
lbloutput.Text = "Too Low";
this.BackColor = System.Drawing.Color.LightSeaGreen;
counter = counter + 1;
}
else if (guess > randomnumber)
{
lbloutput.Text = "Too High";
this.BackColor = System.Drawing.Color.SlateBlue;
counter = counter + 1;
}
else
{
lbloutput.Text = "Good Guess";
counter = counter + 1;
lblcounter.Text = "You guessed " + counter + " times.";
}
}
else
{
/*If the value cannot be converted to a int, then display a message box saying so.*/
MessageBox.Show("This is not a number. Please enter a number between 0-100");
}
}
}
}
答案 0 :(得分：3)
像这样更改您的代码。您试图在类中调用方法Next，这是不允许的，当您在构造函数中移动完整代码时，您的变量范围仅存在于该构造函数中，因此在另一个方法中访问的变量将不起作用。所以解决方案是在类级别定义变量，但在构造函数
中初始化它 Random random;
int randomnumber;
public Guess()
{
/*Once the program is initalized, I want the 2nd button hidden until the first one
is clicked with a value in the textbox*/
InitializeComponent();
btnexe2.Hide();
random = new Random();
randomnumber = random.Next(0, 101);
}
答案 1 :(得分：1)
您应该初始化方法内的变量（初始化意味着向变量添加值 - 使用“new”关键字）;
尝试这样的事情：
class Guess {
Random random;
int randomNumber;
public Guess() {
random = new Random();
randomnumber = random.Next(0, 101);
//Rest of the code
}
}
答案 2 :(得分：1)
我认为这个答案可以帮到你。您不能使用实例变量初始化另一个实例变量，因为您编写它们的顺序不是每个定义编译器创建它们的顺序。
A field initializer cannot reference the nonstatic field, method, or property
答案 3 :(得分：0)
尝试更改此
Random random = new Random();
int randomnumber = random.Next(0, 101);
public Guess()
{
/*Once the program is initalized, I want the 2nd button hidden until the first one
is clicked with a value in the textbox*/
InitializeComponent();
btnexe2.Hide();
}
到这个
private Random _Random;
private int _RandomNumbrer;
public Guess()
{
_Random = new Random();
_RandomNumbrer = random.Next(0, 101);
/*Once the program is initalized, I want the 2nd button hidden until the first one
is clicked with a value in the textbox*/
InitializeComponent();
btnexe2.Hide();
}
你几乎在那里尝试做什么