字符串操作练习

for i in range (12):
    print(chr(9800+i),end="  ")

s = input("请输入，明文密码：")
for i in s:
    if ord("a") <= ord(i) <= ord("z"):
        print(chr(ord("a") + (ord(i) - ord("a") + 3) % 26),end=‘‘)
    else:
        print(i,end=‘‘)

print(‘中华人民共和国国内生产总值（GDP）：{0:,.2f}亿元（{1}年）‘.format(689136.89,"2015"))

for x in range(1,10):
    for y in range(1,x+1):
        print(‘{}x{}={}‘.format(x,y,x*y),end=‘ ‘)
    print(‘\n‘)