3.1
a=60
for i in range(10):
a=a+0.5
b=a*(1+0.165)
print(b)
3.2
s=1.0
for i in range(1,366):
if i%7 in [4,5,6,0]:
s=s*1.01
print(s)
3.4
a=input("请输入一个五位数：")
if (a[0]==a[4])&(a[1]==a[3]):
print("YES")
else:
print("NO")
3.8
from tqdm import tqdm
from time import sleep
for i in tqdm(range(1,100)):
sleep(0.01)
3.7
while True:
for i in ['/','-','|','\\','|']:
print("%s\r"%i,end="")
