python p124 3.19--3.21,p125 3.6--3.78

3.19
import time
t = time.gmtime()
print(time.strftime("%Y-%m-%d",t))

3.20
import time
t = time.gmtime()
print(time.strftime("%Y-%m-%d",t))
print(time.strftime("%Y年%m月%d日",t))
print(t)
print(time.ctime())
print(time.time())

3.7
while True:
for i in ["/", "-", "|", "\", "|"]:
print("%s\r" % i, end="")

3.8

tqdmBar.py

from tqdm import tqdm
from time import sleep
for i in tqdm(range(1, 100)):
sleep(0.01)

3.6 and 3.21

TextprogressBar1.py

import time
scale = 10
print("------执行开始------")
for i in range(scale+1):
a = '**'* i
b = '..'(scale - i)
c = (i/scale)100
print("\r%{:>3.0f}[{}->{}]".format(c,a,b),end = "")
time.sleep(0.1)
print("------执行结束------")
for i in range(101):
print ("\r{:3}%".format(i),end = "")
time.sleep(0.05)