python中循环判断总结

 猜数字游戏:
 
   
i=random.randint(1,101)
 while True:
    a=int(input('请输入一个数字:'))
     if i>a:
         print('你猜小了')
     elif i
打印出1-100的偶数和,奇数和:
 
   
n=1;sum=0;jishu=0;
while n<=100:
    if n%2==0:
        sum+=n;
    else:
        jishu+=n;
    n+=1;#迭代部分
print("1-100之间的偶数和是:"+str(sum))
print("1-100之间的奇数和是:"+str(jishu))
输出1-100中3的倍数,5的倍数及3和5的公倍数
n=1;
while n<=100:
    if n%3==0 and n%5==0:
        print("{0}是3和5的倍数".format(n))
    elif n %3==0:
        print("{0}是3的倍数".format(n))
    elif n%5==0:
        print("{0}是5的倍数".format(n))
    n+=1;
else:
    print("循环完毕,判断结束")
菱形:
for i in range(1,10,2):
    print(("*"*i).center(20," "))
for j in range(7,0,-2):
    print(("*"*j).center(20,' '))
乘法表:
for i in range(1,10):
    for j in range(1,i+1):
        print(j,"*",i,"=",i*j,end="\t")
    print()





 
   

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