python 3 - ord期待一个角色

Question

def toNumbers(strList):
    sum = 0
    strList[:]= (ord(ch)-96 for ch in strList)
    print(strList)


def main():
    print("Modifies each entry in the list by converting it to a number.")
    strList = [ "dd", "t", "c"]
    nums= toNumbers(strList)
main()

我收到错误：ord期待一个角色。我认为这与我的for循环有关。对此的任何帮助都会很棒。

Answer 1

你真的应该仔细阅读你的错误信息。它实际上说的是

TypeError: ord() expected a character, but string of length 2 found

长度为2的字符串为"dd"。