namespace ConsoleApplication39
{
class Program
{
static void Main(string[] args)
{
while (true)
{
Console.Write("请选择您想要得到的图形?A正方形;B三角形;C平行四边形;D菱形;E梯形:");
string n = Console.ReadLine();
Console.Write("请输入数字:");
int m = Convert.ToInt32(Console.ReadLine());
switch (n)//选择语句
{
case "A":正方形
for (int i = 1; i <= m; i++)//列循环,一次循环出每一次的行循环,下同
{
Console.Write("☆");
for (int j = 1; j <= m; j++)行循环
{
Console.Write("☆");
}
Console.Write("
");
}
break;
case "B"://三角形
for (int i = 1; i <= m; i++)
{
for (int j = 1; j <= m - i; j++)
{
Console.Write(" ");
}
for (int k = 1; k <= 2 * i - 1; k++)
{
Console.Write("☆");
}
Console.Write("
");
}
break;
case "C":
for (int i = 1; i <= m; i++)
{
for (int j = 1; j <=m-i; j++)
{
Console.Write(" ");
}
for (int k =1; k <= m; k++)
{
Console.Write("○");
}
Console.Write("
");
}
break;
case "D":
for (int i = 1; i <= m; i++)
{
for (int j = 1; j <= m - i; j++)
{
Console.Write(" ");
}
for (int k = 1; k <= 2 * i - 1; k++)
{
Console.Write("☆");
}
Console.Write("
");
}
for (int p = 1; p <= m; p++)
{
for (int q = 1; q <= p; q++)
{
Console.Write(" ");
}
for (int h = 1; h <= 2 *(m-p) - 1; h++)
{
Console.Write("★");
}
Console.Write("
");
}
break;
case "F":
for (int i = 1; i <= m; i++)
{
for (int j = 1; j <= m - i; j++)
{
Console.Write(" ");
}
for (int k = 1; k <= 2 * i + 3; k++)
{
Console.Write("☆");
}
Console.Write("
");
}
break;
default:
Console.Write("您的输入有误!");
break;
}
Console.ReadLine();
}
}
}
}
扩展:不论方法只要能得到结果
例:
static void Main(string[] args)
{
string s = "";
s = "★
★★
★★★
★★★★
★★★★★";
Console.WriteLine(s);
Console.ReadLine();
}