time的基本使用介绍

import time
t=time.gmtime()
tplt=‘%Y-%m-%d %H:%M:%S‘
info=time.strftime(tplt,t)
print(info)

import time
start=time.perf_counter()
end=time.perf_counter()
interval=end-start
print(interval)

def wait():
    time.sleep(3.3)

import time

def progress_bar():
    print(‘程序开始执行‘.center(40,‘-‘))
    scale=10

    for i in range(scale+1):
        a=‘-‘*i
        c=‘.‘*(scale-i)
        b=i/scale*100
        print(‘{:>3.0f}%[{}->{}]‘.format(b,a,c))
        time.sleep(1)
    print(‘程序结束执行‘.center(40,‘-‘))

progress_bar()

import time

def progress_bar():
    start=time.perf_counter()
    scale=10

    for i in range(scale+1):
        a=‘--‘*i
        #c=‘.‘*(scale-i)
        b=i/scale*100
        interval=time.perf_counter()-start
        print(‘\r{:>3.0f}%[{}>]{:3.2f}秒‘.format(b,a,interval),end=‘‘)
        time.sleep(0.65)

progress_bar()