(1)
try:
? f = open("filename.txt")
? text=f.read()
finally:
? f.close()
(2)
with open("filename.txt") as f:
? text=f.read()
#with聲明結(jié)束時(shí)报破,文件自動(dòng)關(guān)閉,即使出現(xiàn)exception也沒(méi)有關(guān)系
(1)
try:
? f = open("filename.txt")
? text=f.read()
finally:
? f.close()
(2)
with open("filename.txt") as f:
? text=f.read()
#with聲明結(jié)束時(shí)报破,文件自動(dòng)關(guān)閉,即使出現(xiàn)exception也沒(méi)有關(guān)系