莊瀅臻python,方法(),seek(0)readlines(),in

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('金一乙莊瀅臻輸入搜尋關鍵詞，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')