import 的各種方法

1. 直接引入

import time指import time 模塊，這個模塊可以python自帶，也可以是自己安裝的，比如以后會用到numpy這些模塊,需要自己安裝。

import time

print(time.localtime()) #這樣就可以print 當地時間了

""""

time.struct_time(tm_year=2016, tm_mon=12, tm_mday=23, tm_hour=14, tm_min=12, tm_sec=48, tm_wday=4, tm_yday=358, tm_isdst=0)

""""

2. import time as __

import time as __,__下劃線縮寫部分可以自己定義，在代碼中把time定義成 t.

import time as t

print(t.localtime()) # 需要加t.前綴來引出功能

""""

time.struct_time(tm_year=2016, tm_mon=12, tm_mday=23, tm_hour=14, tm_min=12, tm_sec=48, tm_wday=4, tm_yday=358, tm_isdst=0)

""""

3. from time import time,localtime ,只import自己想要的功能.

from time import time, localtime

print(localtime())

print(time())

""""

time.struct_time(tm_year=2016, tm_mon=12, tm_mday=23, tm_hour=14, tm_min=41, tm_sec=38, tm_wday=4, tm_yday=358, tm_isdst=0)

1482475298.709855

""""

4. from time import * 輸入模塊的所有功能

from time import *

print(localtime())

""""

time.struct_time(tm_year=2016, tm_mon=12, tm_mday=23, tm_hour=14, tm_min=41, tm_sec=38, tm_wday=4, tm_yday=358, tm_isdst=0)

""""

import自己的模塊

自建一個模塊

模塊寫好后保存在默認文件夾：balance.py

d=float(input('Please enter what is your initial balance: \n'))

p=float(input('Please input what is the interest rate (as a number): \n'))

d=float(d+d*(p/100))

year=1

while year<=5:

d=float(d+d*p/100)

print('Your new balance after year:',year,'is',d)

year=year+1

print('your final year is',d)

-- 調用自己的模塊

新開一個腳本，import balance

import balance

""""

Please enter what is your initial balance:

50000 # 手動輸入我的本金

Please input what is the interest rate (as a number):

2.3 #手動輸入我的銀行利息

Your new balance after year: 1 is 52326.45

Your new balance after year: 2 is 53529.95834999999

Your new balance after year: 3 is 54761.14739204999

Your new balance after year: 4 is 56020.653782067144

Your new balance after year: 5 is 57309.12881905469

your final year is 57309.12881905469

""""

總結

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