我正在尝试使我制作的三角形面朝下.试了很多次,不知道怎么弄.
I am trying to make the triangle I have made up side down. Tried many times, but I don't know how to do this.
我知道的代码是:
public static void drawPyramide(int lines, char symbol, boolean startDown) {
//TRIANGLE
if(startDown) {
//The triangle up side down should be here.
}
else {
int c = 1;
for (int i = 0; i < lines; i++) {
for (int j = i; j < lines; j++) {
System.out.print(" ");
}
for (int k = 1; k <= c; k++) {
if (k%2==0) System.out.print(" ");
else System.out.print(symbol);
}
System.out.print("
");
c += 2;
}
}
}
有什么建议可以翻转"这个三角形吗?谢谢.
Any suggestions how I can "flip" this triangle? Thanks.
要翻转三角形,你真的只需要改变迭代的方向.而不是从 i = 0
到 i <lines
你需要从 i = lines-1
到 i >= 0
To flip the triangle you really just need to change the direction of iteration. Instead of going from i = 0
to i < lines
you need to go down from i = lines-1
to i >= 0
您还需要将 c
更改为要以多少个空格和符号开头.
You also need to change the c
to how many spaces and symbols you want to start with.
可能是这样的:
int c = 2*lines;
for (int i = lines-1; i>=0; i--)
{
for (int j = i; j < lines; j++)
{
System.out.print(" ");
}
for (int k = 1; k <= c; k++)
{
if (k % 2 == 0)
{
System.out.print(" ");
}
else
{
System.out.print(symbol);
}
}
System.out.print("
");
c -= 2;
}
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