python - 如何在列表中找到最大的数字

Question

所以我试图在列表中找到第三大数字/字符串。这是我到目前为止的代码

def big(inputString):
    big1 = inputString[0]
    big2 = inputString[0]
    big3 = inputString[0]
    for char in inputString:
        if char > big1:
            big1, big2,big3 = char,big1,big2
        elif big1 > char > big2 > big3:
            big3 = char
    print('largest',big1,'second largest',big2,third largest,big3)

当用户输入字符串列表时，输出应该如下所示:

big('abxztu')
largest z second largest x third largest u

但是我得到的输出是

largest z second largest x third largest b

谁能告诉我我的代码哪里出了问题

Answer 1

你可以简单地这样做:

def big(inputString):
    l = sorted(list(inputString)) #Turning the input into a list and sorting it
    l = l[::-1] #Reversing the list
    print(l[0],l[1],l[2]) #Printing out the first three element of the list

这是一个测试运行的例子:

>>> big("abc")
c b a

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编辑 1

另一个测试运行的例子:

>>> big("helloworld")
w r o