返回字串

file = input()

#返回字串
fo = open(file,"r").read(6)
print(fo)

返回列表形式

file = input()
fo = open(file,"r")
#print(fo)
#返回列表形式
print(fo.readlines(-1))

file = input()
fo = open(file,"r")

for line in fo.readlines():
    print(line.replace('\n',""))
fo.close()

file = input()
fo 
 
= open(file,"r")
for line in fo:
    print(line.replace('\n',""))
fo.close()

w+ 

開啟一個檔案用於讀寫。如果該檔案已存在則開啟檔案，並從開頭開始編輯，即原有內容會被刪除。如果該檔案不存在，建立新檔案。

fname = input()
fo = open(fname,"w+")
ls = ["TreeDream","love","sea"]

fo.writelines(",".join(ls))
fo.seek(0)
for line in fo:
    
 
print(line)
fo.close()