洪幼宣

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

file = open('金融常識.txt','r',encoding='utf-8') reading = file.read() file.close() print('檔案字元characters數:', len(reading)) mySet = set(reading) print(f'字元數目{len(reading):,}，不同字元數{len(mySet):,}') myDict = dict() for j in mySet: myDict[j] = 0 for i in reading: myDict[i] += 1 for j in mySet: print(f"字元「{j}」出現{myDict[j]:,}次數")