羅正屹python輸入input尋找find沒找到-1

file = open('金融常識.txt','r',encoding='utf-8') lines = file.readlines() file.close() x = input('劉宜棣入搜尋關鍵詞: ') for line in lines: if line.find(x) != -1: print(line,end="") file = open('金融常識.txt','r',encoding='utf-8') lines = file.readlines() file.close() x = input('劉宜棣輸入搜尋關鍵詞: ') n = 0 for line in lines: if line.find(x) != -1: n=n+1 print(n,' ',line,end='') print(f'總共{n}題')

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  1. 程式設計期中考,沒有嵌入影片。https://louzhengyi.blogspot.com/2026/11/htmlcssjavascriptpython.html
    1102補字元數目37,241不同字元數1,251. https://louzhengyi.blogspot.com/2026/11/pythonsetdict372411251.html
    1018.https://louzhengyi.blogspot.com/2026/10/pythoninputfind-1.html

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