在Python中将for循环更改为while循环

Question

myList=[1,2,3,5]
def findMax(aList):
     biggest = aList[0]
     for value in aList: 
           if value > biggest:
               biggest = value
     return biggest

此代码搜索列表中的最大数字。

我如何将其更改为while循环，而不是for循环？

Answer 1

myList=[1,2,3,5]
def findMax(aList):
     biggest = aList.pop()
     while(len(aList) > 0):
         element = aList.pop()
         if (element > biggest):
             biggest = element
     return biggest

Answer 2

您可以做的是在进入循环之前声明一个简单的计数器，然后在检查该值是否大于biggest之后，向计数器添加一个。确保计数器是否等于阵列的大小，所以你不要超出它的范围。如果是，你就可以摆脱while循环。

Answer 3

试试这个：

myList=[1,2,3,5]

def findMax(aList):
     i = 0
     biggest = aList[0]
     while (i < len(myList)):
          if myList[i] > biggest:
               biggest = value
          i += 1;
     return biggest

Answer 4

myList=[1,2,3,5]
def findMax(aList):
     biggest = aList[0]
     ii = 1
     while ii < len(aList): 
           if aList[ii] > biggest:
               biggest = aList[ii]
           ii += 1
     return biggest