编写有字符型参数C和整形参数N的函数，让他们显示出由字符C组成的三角形。其方式为第1行有1个字符C，第2行有2个字符C ，等等。-Write a character type parameter C and plastic parameter N function, let them show the character of C of the triangle. The way as the line 1 have a character C, line 2 have 2 character