字符串操作练习
for i in range (0,12): print(chr(9800+i),end='\\')
plaincode=input ("请输入明文:") for p in plaincode: if ord("a")<=ord("p")<=ord("z"): print(chr(ord("a")+(ord(p)-ord("a")+3)%26),end="") else: print(p,end="")
n=input("请输入姓名:") print("{0: ^4}".format(n))
for i in range(1,10): for j in range(1,i+1): print("{}*{}={:2} ".format(j,i,i*j),end ='') print('')
s = input("中华人民共和国国内生产总值(GDP)(2015年)(千分位、2位小数,浮点数)") i = input("选择格式化样式:(1)千分位;(2)2位小数;(3)浮点型;(4)以上同时处理") s = float(s) if i == '1': print('{:,}'.format(s)) elif i == '2': print('{:.2}'.format(s)) elif i == '3': print('{:.2f}'.format(s)) elif i == '4': print('{:,.2f}'.format(s))