有没有办法更有效地编写这个循环？

Question

i = 2
while (i != len(recipe)):
        print(recipe[i])
        i += 1
        print(recipe[i])
        i += 1
        print(recipe[i])
        i += 1

这个while循环可以写得更简单，它看起来很麻烦

Answer 1

类似的东西：

for item in recipe[2:]:
   print(item)

虽然在原始代码抛出IndexError的情况下，行为不会完全相同。

Answer 2

i = 2
length = len(recipe)
while(i != length):
    print(recipe[i])
    print(recipe[i+1])
    print(recipe[i+2])
    i += 3

或

i = 2
length = len(recipe)
while(i != length):
    print(recipe[i],recipe[i+1],recipe[i+2])
    i += 3

显然你必须处理IndexError