该如何将两个for循环和在一起呢

Question

import turtle as t
def DrCircle(n,f):
    t.penup()
    t.goto(0,-n)
    t.pendown()
    t.pencolor('red')
    t.begin_fill()
    t.circle(n)
    t.fillcolor(f)
    t.end_fill()
for i in range(160,30,-60):
for z in ['yellow','blue','green']:
    DrCircle(i,z)
t.hideturtle()
t.done()

Answer 1

python是通过缩进来判断语句的归属。将语句for z in ['yellow','blue','green']:和语句DrCircle(i,z)各增加一个缩进。代码和运行结果如下：

import turtle as t
def DrCircle(n,f):
    t.penup()
    t.goto(0,-n)
    t.pendown()
    t.pencolor('red')
    t.begin_fill()
    t.circle(n)
    t.fillcolor(f)
    t.end_fill()
for i in range(160,30,-60):
    for z in ['yellow','blue','green']:
        DrCircle(i,z)
t.hideturtle()
t.done()

但是这个并不是楼主想要的结果，我猜测楼主想得到这样的结果：

思路是用两个数组分别存半径和颜色，附上代码：

import turtle as t
def DrCircle(n,f):
    t.penup()
    t.goto(0,-n)
    t.pendown()
    t.pencolor('red')
    t.begin_fill()
    t.circle(n)
    t.fillcolor(f)
    t.end_fill()
    
r = range(160,30,-60)
c = ['yellow','blue','green']
for i in range(len(r)):
    DrCircle(r[i], c[i])
t.hideturtle()
t.done()