我不知道如何打開一個檔案，我得到一個錯誤ValueError。對已關閉的檔案進行I/O操作[已關閉]

with open（'play.txt', 'w') as csv_file。
            csv_reader = csv.reader(csv_file)

        for line in csv_reader:
            print("第一場比賽，第一個球場。"   line[0]   " and"   line[1]   " against "   line[2]   " and"   line[
                3]   " 。")
            print("第一場比賽，第二個球場。"   line[4]   " and"   line[5]   " against "   line[6]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第二場比賽，第一個球場。"   line[0]   " and"   line[2]   " against "   line[1]   " and"   line[
                4]   " 。")
            print("第二場比賽，第二個球場。"   line[4]   " and"   line[6]   " against "   line[5]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第三場比賽，第一個球場。"   line[0]   " and"   line[7]   " against "   line[6]   " and"   line[
                1]   " 。")
            print("Third game, second court: "   line[2]   " and"   line[5]   " against "   line[4]   " and"   line[
                3]   " 。")
            print('')
                '')

Error: ValueError。對已關閉的檔案進行I/O操作。這是一個KIVY應用程式，它需要8個引數的輸入框。

uj5u.com熱心網友回復：

正確強調你的for回圈。它應該在與csv_reader = csv.reader(csv_file)陳述句同一級別的'with'塊內。任何在'with'塊之外的東西都意味著檔案被關閉。此外，我認為open函式中的模式引數應該是'r'，用于讀取檔案。

with open('play.txt'/span>, 'r'/span>) as csv_file。
        csv_reader = csv.reader(csv_file)
        for line incsv_reader:

uj5u.com熱心網友回復：

這里的問題是，你試圖從檔案中讀取，但你使用的不是 "讀模式"，而是 "寫模式"。如果你使用的是 "w"，這意味著你應該只使用該檔案在其中進行寫入。如果你試圖從該檔案中讀出，你會得到一個錯誤，即該操作不被支持。所以，你應該使用 "r "而不是 "w "模式。或者如果你需要從檔案中讀取并寫入檔案，你可以使用 "a "模式。像這樣：

with open('play.txt'/span>, 'a '/span>) as csv_file:
        csv_reader = csv.reader(csv_file)
        for line in csv_reader:
            print("第一場比賽，第一個球場。"   line[0]   " and"   line[1]   " against "   line[2]   " and"   line[
                3]   " 。")
            print("第一場比賽，第二個球場。"   line[4]   " and"   line[5]   " against "   line[6]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第二場比賽，第一個球場。"   line[0]   " and"   line[2]   " against "   line[1]   " and"   line[
                4]   " 。")
            print("第二場比賽，第二個球場。"   line[4]   " and"   line[6]   " against "   line[5]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第三場比賽，第一個球場。"   line[0]   " and"   line[7]   " against "   line[6]   " and"   line[
                1]   " 。")
            print("Third game, second court: "   line[2]   " and"   line[5]   " against "   line[4]   " and"   line[
                3]   " 。")
            print('')
                '')

uj5u.com熱心網友回復：

嘗試檢查for回圈的縮進，或csv_reader的縮進，所以要么增加for回圈的縮進，要么減少csv_reader的縮進。

with open('play.txt'/span>, 'w'/span>) as csv_file。
        csv_reader = csv.reader(csv_file)

        for line in csv_reader:
            print("第一場比賽，第一個球場。"   line[0]   " and"   line[1]   " against "   line[2]   " and"   line[
                3]   " 。")
            print("第一場比賽，第二個球場。"   line[4]   " and"   line[5]   " against "   line[6]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第二場比賽，第一個球場。"   line[0]   " and"   line[2]   " against "   line[1]   " and"   line[
                4]   " 。")
            print("第二場比賽，第二個球場。"   line[4]   " and"   line[6]   " against "   line[5]   " and"   line[
                7]   " 。")
            print('')
                '')

            print("第三場比賽，第一個球場。"   line[0]   " and"   line[7]   " against "   line[6]   " and"   line[
                1]   " 。")
            print("Third game, second court: "   line[2]   " and"   line[5]   " against "   line[4]   " and"   line[
                3]   " 。")
            print('')
                '')

uj5u.com熱心網友回復：

 with open('play.csv', 'rt ') as csv_file:
        csv_reader = csv.reader(csv_file)
        for line in csv_reader:
            print("第一場比賽，第一個球場。"   line[0]   " and"/span>   line[1]   " 反對"/span>   line[2]   " 和"/span>   line[3]   " 。 ")
            print(
                "第一場比賽，第二個球場。"   line[4]   " and"   line[5]   " 反對"/span>   line[6]   " 和"/span>   line[7]   " 。 ")
    
            print(
                "第二場比賽，第一個球場。"   line[0]   " and"   line[2 ]   " 反對"/span>   line[1]   " 和"/span>   line[4]   " 。 ")
            print(
                "第二場比賽，第二個球場。"   line[4]   " and"   line[6]   " 反對"/span>   line[5]   " 和"/span>   line[7]   " 。 ")
    
            print("第三場比賽，第一個球場。"   line[0]   " and"   line[7]   " 反對"/span>   line[6]   " 和"/span>   line[1]   " 。 ")
            print(
                "第三場比賽，第二球場。"   line[2]   " and"   line[5]   " 反對"/span>   line[4]   " 和"/span>   line[3]   " 。 ")

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