郭旻諺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('郭旻諺輸入關鍵詞: ')
for line in lines:
if line.find(x) != -1: print(line)
file = open('金融常識.txt','r',encoding='utf-8')
lines = file.readlines()
file.close()
x = input('郭旻諺入搜尋關鍵詞: ')
n = 0
for line in lines:
if line.find(x) != -1: print(line)
n=n+1
print(n,' ',line,end=' ')
print(f'總共{n}題')
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https://julian696969.blogspot.com/2026/10/pythoninputfind-1.html