# 作业2

1. 使用while循环输出1 2 3 4 5 6 8 9 10

```count=1
while count <= 10:
if count == 7:
count+=1
continue
print(count)
count+=1```
`2. 求1-100的所有数的和`
```n=0
count=1
while count <= 100:
res+=count
count+=1
print(n）```
`3. 输出 1-100 内的所有奇数`
`count=0while count <= 100:    if count%2 == 1:        print(count)    count+=1`
`4. 输出 1-100 内的所有偶数`
```count=1
while count <= 100:
if count%2 == 0:
print(count)
count+=1```
`5. 求1-2+3-4+5 ... 99的所有数的和`
```res=0
count=1
while count <= 5:
if count%2 == 0:
res-=count
else:
res+=count
count+=1
print(res)```
`6. 用户登陆（三次机会重试）`
```while count < 3:
name=input(‘请输入用户名：‘)
if name == ‘egon‘ and password == ‘123‘:
break
else:
print(‘用户名或者密码错误‘)
count+=1```
`7：猜年龄游戏`
`age=18count=0while count < 3:    n=int(input(‘>>: ‘))    if n == age:        print(‘恭喜你答对了‘)        break    count+=1`
`8：猜年龄游戏升级版`
`age=18count=0while True:    if count == 3:        h=input(‘继续（Y/N？)>>‘)        if h == ‘Y‘ or h == ‘y‘:            count=0    else:        break    n=int(input(‘>>: ‘))    if n == age:        print(‘恭喜你答对了‘)        break    count+=1`

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