s='hello jason tank iason sean say hello dsb dsb sb'
a={}
b=s.split()
for i in b:
if i in a:
a[i]+=1
else:
a[i]=1
print(a)
b={'k1':[],'k2':[]}
a={11,22,33,44,55,66,77,88,99,90}
for k in a:
if k==66:
pass
elif k>66:
b['k1'].append(k)
else:
b['k2'].append(k)
print(b)
import time
satat = time.time()
fac = 50
for i in range(fac+1):
print(f'\r[{i">"} {(fac-i)"-"}]{(i*2)}% ',time.time()-satat,end='')
time.sleep(0.1)
import random
x=[]
n=int(input('请输入验证码的长度：'))
for i in range(n):
a = random.choice([random.randint(48, 57), random.randint(65, 69), random.randint(97, 122)])
a = chr(a)
x.append(a)
print(''.join(x))
for a in range(1,10):
for b in range(1,a+1):
print(f'{a}{b}={ab} ',end='')
print('')
