尝试使用for循环来制作这个菱形：

def print_diamond(n):
    # 打印上半部分菱形
    for i in range(n):
        for j in range(n-i-1):
            print(" ", end="")
        for j in range(i+1):
            print("* ", end="")
        print()
    
    # 打印下半部分菱形
    for i in range(n-2, -1, -1):
        for j in range(n-i-1):
            print(" ", end="")
        for j in range(i+1):
            print("* ", end="")
        print()

# 调用函数打印一个大小为5的菱形
print_diamond(5)

    *
   * *
  * * *
 * * * *
* * * * *
 * * * *
  * * *
   * *
    *