Question

所以，我一周前又开始使用python。我试图创建一个返回n的三角形数字的小函数。但是，我在for循环中创造了一个奇怪的故障：

def makeTriangle(s):
    print("S is %d" % s)
    triangle = 0
    for a in range(1,s):
        print("a is: %d " % a)
        triangle = triangle + a
        print("Triangle: %d " % triangle)
        return triangle

n = 3 while n < 10:
    x = makeTriangle(n)
    n+=1

当我运行它时，永远不会从值1更改 - 即使我认为我创建的列表会迭代到＆＃39; n＆＃39;。我哪里错了？

Answer 1

def makeTriangle(s):
    print("S is %d" % s)
    triangle = 0
    for a in range(1,s):
        print("a is: %d " % a)
        triangle = triangle + a
        print("Triangle: %d " % triangle)
    return triangle

n = 3 
while n < 10:
x = makeTriangle(n)
n+=1

将你的return语句从for循环中删除

for ...在范围循环中无法正确创建

1 个答案: