原始问题：
vscode 圣诞树代码
def draw_tree(levels):
for i in range(levels):
print(" " * (levels - i - 1) + "*" * (2 * i + 1))
print(" " * (levels - 1) + "|")
levels = int(input("请输入圣诞树的高度： "))
draw_tree(levels)vscode 圣诞树代码
def draw_tree(levels):
for i in range(levels):
print(" " * (levels - i - 1) + "*" * (2 * i + 1))
print(" " * (levels - 1) + "|")
levels = int(input("请输入圣诞树的高度： "))
draw_tree(levels)
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