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  • python 我想知道這句的具體含義:this only works with two literals,not with arbitrary string express

    python 我想知道這句的具體含義:this only works with two literals,not with arbitrary string express
    什么是arbitrary string expression,什么事literals,有什么區(qū)別
    Two string literals next to each other are automatically concatenated; the first
    line above could also have been written word='Help''A'; this only works with two literals,not with
    arbitrary string expressions:
    英語人氣:141 ℃時(shí)間:2020-05-25 16:30:24
    優(yōu)質(zhì)解答
    Python Tutorial?
    這里的意思是,兩個(gè)鄰接的字符串會(huì)被自動(dòng)拼接在一起.但這一規(guī)則不能對(duì)任意的字符串表達(dá)式起作用.
    >>> "help" "a"
    'helpa'
    >>> "help" "abdfgdsaf".strip()
    'helpabdfgdsaf'
    >>> "string".strip() "help"
    SyntaxError: invalid syntax
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