用Python的turtle画一个生日贺卡

好的，下面是一个用Python的turtle库画生日贺卡的示例代码：

import turtle

# 设置画布和画笔
canvas = turtle.Screen()
canvas.bgcolor("#FFDAB9")
pen = turtle.Turtle()
pen.color("#800000")
pen.width(3)
pen.speed(5)

# 绘制生日快乐字样
pen.penup()
pen.goto(-150, 100)
pen.pendown()
pen.write("生日快乐！", font=("Arial", 36, "bold"))

# 绘制蛋糕底部
pen.penup()
pen.goto(-100, -100)
pen.pendown()
pen.begin_fill()
pen.color("#FF6347")
pen.circle(50)
pen.end_fill()

# 绘制蛋糕上部
pen.penup()
pen.goto(-100, -50)
pen.pendown()
pen.begin_fill()
pen.color("#F08080")
pen.circle(30)
pen.end_fill()

# 绘制蜡烛
pen.penup()
pen.goto(-85, -30)
pen.pendown()
pen.color("#FFFF00")
pen.goto(-85, 20)
pen.goto(-80, 20)
pen.goto(-80, -30)
pen.goto(-85, -30)
pen.goto(-85, 0)
pen.goto(-70, 0)
pen.goto(-70, -30)
pen.goto(-85, -30)

# 完成绘制
pen.hideturtle()
canvas.exitonclick()

这段代码使用turtle库绘制了一个生日贺卡，包括“生日快乐”字样和一个蛋糕和蜡烛。你可以根据自己的需要修改颜色、位置和细节，让贺卡更加个性化。