AttributeError: 'str' object has no attribute 'pop' 什么意思求解答

Question

def print_first_word(words):
    """Prints the first word after popping it off."""

    print ( words.pop(0))
sentence = "All god\tthings come to those who weight."

print_first_word(sentence)

报错 AttributeError: 'str' object has no attribute 'pop'

Answer 1

def print_first_word(words):
    """Prints the first word after popping it off."""
    # 三种方法都可以
    print ( words[0] )
    print ( list(words).pop(0) )
    print ( list(words)[0] )
sentence = "All god\tthings come to those who weight."

print_first_word(sentence)

Answer 2

提示内容翻译一下就知道了：

'str' 类型的对象没有 'pop' 这个属性

函数本身的设计上应该是要传入列表，但是你传入的 sentence 明显是一个字符串，你可以修改函数使它可以处理字符串，也可以修改传入的参数把它变成列表。