我试过用这个做金字塔三角形。 [英] i've tried doing a triangle of pyramid with this.

问题描述

我希望我这样出来。

输入数字= 5

---- *

--- ***

- *****

- *******

*********





但我的输出是......

---- *

--- **

- ***

- ****

*****



请帮帮我。如何写短代码。

谢谢..



更新！我的代码确实像这样工作。

I want my out put like this.
Input number = 5
----*
---***
--*****
-*******
*********


But my output is...
----*
---**
--***
-****
*****

please help me. how to write short code.
Thank..

Update! My code does work like this.

import java.util.*;
public class test {


public static void main(String[] args) {
Scanner k = new Scanner(System.in);
System.out.print("Input row : ");
int n = k.nextInt();
for (int i = 1; i <= n; i++) { 
for (int j = n; j > i; j--) { 
System.out.print(" ");
}
for (int j = i; j > 1; j--) {
System.out.print("*");
}

//
for (int j = 1; j <= i; j++) { // my teacher don't want this line.
System.out.print("*");  // my teacher don't want this line.
}
// But teacher want my output like.
----*
---***
--*****
-*******
*********
//

System.out.println();

}
}
}

推荐答案

这不是一个重大变化从你现在的代码 - 或者它不应该是。

目前你可能正在为每一行（即一个for循环，一个输入数字）运行一个循环并输出（inputNumber - loopCounter）取消，然后loopCounter星。



相反，创建一个新变量：starsCount并从1开始。然后在你的循环内输出相同的数字下划线，但输出starsCount星，每次增加两个。

This isn't a major change from the code you have at the moment - or it shouldn't be.
At the moment you are probably running a loop for each line (i.e. a for loop, 1 to the input number) and outputting (inputNumber - loopCounter) undelines, then loopCounter stars.

So instead, create a new variable: starsCount and start it at 1. Then inside your loop output the same number of underlines, but output starsCount stars, and increase it by two each time.

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