C# 救命啊。从类调用操作
表格1:C# 救命啊。从类调用操作,c#,C#,表格1: class Addition : Form1 { public string AdditionTotal(){ string AdditionTotal; int num1 = int.Parse(txtFirstNumber.Text); int num2 = int.Parse(txtSecondNumber.Text); AdditionTotal = (num1 + num2).ToString(
class Addition : Form1
{
public string AdditionTotal(){
string AdditionTotal;
int num1 = int.Parse(txtFirstNumber.Text);
int num2 = int.Parse(txtSecondNumber.Text);
AdditionTotal = (num1 + num2).ToString();
return AdditionTotal;
}
public AdditionEqual() //Throws an error here
{
Convert.ToInt32(AdditionTotal);
int AdditionEqual = AdditionTotal;
Addition frm2 = new Addition();
frm2.Show();
this.Hide();
有人可以编辑并告诉我这里的代码有什么问题吗?我需要使用类和单选按钮来制作计算器。目前有1个错误。它表示public AdditionEqual()需要有一个返回类型。只有1个错误,但我不知道在修复后代码是否能正常工作。有人能帮忙吗?函数需要返回类型。第一个方法返回一个字符串:
public Form1()
{
InitializeComponent();
}
public string AdditionEqual { get; set; }
private void button1_Click(object sender, EventArgs e)
{
Addition MyLaptop = new Addition();
if (Add.Checked)
{
MessageBox.Show( this.AdditionEqual);
}
该字符串
指示函数将返回的数据类型
public string AdditionTotal(){
此函数没有该指示器。如果不希望该方法返回任何内容,请使用void
public AdditionEqual()
public void AdditionEqual()