file = open('金融常識.txt','r',encoding='utf-8') lines = file.readlines() file.seek(0) reading = file,read() file.close() print(len(lines),len(reading)) x = input('金一乙徐湘潔輸入搜尋關鍵詞,列出所有題目: ') n = 0 for line in lines: if x in line: # if line.find (x) != -1: 使用python更強的功能in n += 1 # 被更常使用 print(n,'',line,end="")#預設結束換列 print(f'\n總共{n}題目')