C# 乘法表
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原文地址: http://stackoverflow.com/questions/11303374/
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C# Multiplication Table
提问by Clay
So I'm attempting to print a multiplication table in C# however I can't quite figure out how to get what I need.
所以我试图在 C# 中打印一个乘法表，但是我不太清楚如何得到我需要的东西。
So far my program outputs the following:
到目前为止，我的程序输出如下：
1 2 3
2 4 6
3 6 9
1 2 3
2 4 6
3 6 9
However, I need it to output this:
但是，我需要它来输出这个：
0 1 2 3
1 1 2 3
2 2 4 6
3 3 6 9
0 1 2 3
1 1 2 3
2 2 4 6
3 3 6 9
I've tried a lot of different ways to get the second output however I can't quite figure it out. I'm not necessarily asking for an answer but if someone could point me in the right direction it would be much appreciated.
我尝试了很多不同的方法来获得第二个输出，但是我无法弄清楚。我不一定要寻求答案，但如果有人能指出我正确的方向，我将不胜感激。
This is the code I have as of now:
这是我目前拥有的代码：
static void Main(string[] args)
{
for (int i = 1; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
Console.Write(i * j + "\t");
}
Console.Write("\n");
}
Console.ReadLine();
}
采纳答案by McGarnagle
for (int i = 0; i <= 3; i++)
{
Console.Write(i + "\t");
for (int j = 1; j <= 3; j++)
{
if (i>0) Console.Write(i * j + "\t");
else Console.Write(j + "\t");
}
Console.Write("\n");
}
回答by Andre Calil
You should skip both 0's.
您应该跳过两个 0。
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
Console.Write((i == 0? j : (j == 0? i : i*j)) + "\t");
}
Console.Write("\n");
}
回答by ???? ???? ????? ???
int tbl= int.Parse(Console.ReadLine());
int j = int.Parse(Console.ReadLine());
for (int i=1; i<=10; i++)
{
for (int j=1;j<=10; j++)
{
Console.WriteLine("{0}*{1}={2}", i, j, (i * j));`enter code here`
}
}
Console.ReadLine();
回答by Gunārs ?imkūns
You could try one of this three solutions.
您可以尝试这三种解决方案之一。
Solution 1 (without if else statement):
解决方案 1（没有 if else 语句）：
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
Console.Write("{0}\t", i);
for (int j = 1; j <= 3; j++)
{
Console.Write("{0}\t", i * j);
}
Console.WriteLine();
}
Console.ReadLine();
}
Solution 2 (With if else statement):
解决方案 2（使用 if else 语句）：
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
if (i == 0)
{
Console.Write("{0}\t", i);
}
else
{
Console.Write("{0}\t", i * j);
}
}
Console.WriteLine();
}
Console.ReadLine();
}
Solution 3 (With short-hand if else statement):
解决方案 3（使用简写 if else 语句）：
static void Main(string[] args)
{
for (int i = 0; i <= 3; i++)
{
for (int j = 1; j <= 3; j++)
{
Console.Write("{0}\t", (i == 0) ? i : i * j);
}
Console.WriteLine();
}
Console.ReadLine();
}
回答by guest
for (int i = 0; i <= 3; i++)
{
for (int j = 0; j <= 3; j++)
{
if (i == 0)
{
Console.Write(j);
}
else
{
if(j == 0)
{
Console.Write(i);
}
else
{
Console.Write(i * j);
}
}
}
Console.Write("\n");
}
回答by abc
Console.WriteLine("Enter A Number");
int j = Convert.ToInt32(Console.ReadLine());
for (int i = 0 ; i <= 10; i++) {
Console.WriteLine("{1} X {0} = {2}",i,j,i*j);
Console.ReadLine();
}
回答by KHENRY312
using System;
/*
* Write a console-based application that displays a multiplication table of the product of
* every integer from 1 through 10 multiplied by every integer from 1 through 10. Save the
* file as DisplayMultiplicationTable.cs.
*/
namespace MultiplicationTable
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("\t\t\t\t\t\t\t\t\tMultiplication Table");
Console.WriteLine("------------------------------------------------------------------------------------------------------------------------------------------------------------");
const int END = 11;
for(int x = 1; x < END; x++)
{
for(int y = 1; y < END; y++)
{
int value = x * y;
Console.Write("{0} * {1} = {2}\t", y, x, value);
}
Console.WriteLine();
}
Console.ReadLine();
}
}
}
Output
输出
I am attempting to complete the above code in a GUI. So far I have come up with the following code; but the output is not like the above output.
我正在尝试在 GUI 中完成上述代码。到目前为止，我想出了以下代码；但输出不像上面的输出。
My Code for the GUI is as follows:
我的 GUI 代码如下：
using System; using System.Windows.Forms;
使用系统；使用 System.Windows.Forms;
namespace DisplayMultiplicationTableGUI { public partial class Form1:Form { public Form1() { InitializeComponent(); }
namespace DisplayMultiplicationTableGUI { public partial class Form1:Form { public Form1() { InitializeComponent(); }
private void ShowTableButton_Click(object sender, EventArgs e)
{
int a;
int b;
const int STOP = 11;
for(a = 1; a < STOP; a++)
{
for(b = 1; b < STOP; b++)
{
int value = a * b;
multiplicationTableLabel.Text += String.Format("{0} * {1} = {2} ", b, a, value);
}
multiplicationTableLabel.Text += "\n";
}
}
}
}
}
