第一天的六道题

第一题

count = 1
while count <= 10:
    if count != 7 :
        print(count)
    count += 1

第二题

count = 1
sum = 0
while count <= 100:
    sum = sum + count
    count += 1
print(sum)

第三题

count = 1
sum = 0
while count <= 100:
    if count % 2 ==1:
        sum = sum + count
    count += 1
print(sum)

第四题

count = 1
sum = 0
while count <= 100:
    if count % 2 == 0:
        sum = sum + count
    count += 1
print(sum)

第五题

count = 1
sum = 0
while count <  100:
    if count % 2 == 1:
        sum = sum + count
        count += 1
    else:
        sum = sum - count
        count += 1
print(sum)
print(count)

第六题

R_USER = '562728839'
R_PASSWORD = '562728839'

count = 1
while count <=3 :
    user = input("请输入用户名：")
    password = input("请输入密码：")
    if user == R_USER and password == R_PASSWORD:
        print('欢迎光临小西天夜总会')
        break
    elif count<=2:
        print('信息有误，请再输入一次')
    else:
        print('您已失去进入小西天资格')
    count += 1