python 不超过20行的小练习

1.九九乘法表

for i in range(1,10):    for j in range(1,i+1):        print(j,"*",i,"=",i*j," ",end='')    print(end='\n')

2.3个值取最大值

ss=int(raw_input('please input a:'))b=int(raw_input('please input b:'))c=int(raw_input('please input c:'))max =ssif(b>max):    max=b;if(c>max):    max=c;print(ss,b,c,max)

3.求阶乘

1) for 循环求

while True:    n=int(input('please input number'))    def f(n):        c = 1        for i in range(1,n+1):            c  *= i        return c    print (f(n))

2）递归

>>> def a(n):if n==1:return 1else:return n*a(n-1)>>> res=a(5)>>> res120