pycharm使用教程链接+部分练习题01

1 #1.使用whilAnacondae循环输出 1 2 3 4 5 6  8 9 10
2 i = 1
3 while i < 11:
4     if i == 7 :
5         print(‘ ‘,end=‘‘)
6     else:
7         print(i,end=‘ ‘)    
8     i = i + 1

1 #2.求1-100所有数的和
2 i = 1
3 sum = 0
4 while i < 101:
5     sum = sum + i
6     i += 1
7 print(sum)

 1 #3.输出1-100内的所有奇数
 2 i = 1
 3 while i < 101:
 4     if i % 2 ==1:
 5         print(i)
 6     i += 1
 7 #4.输出1-100以内的所有偶数
 8 i = 1
 9 while i < 101:
10     if i % 2 ==0:
11         print(i)
12     i += 1

1 #5.求1+2+3+4+5+...+99的和
2 i = 1
3 sum = 0
4 while i < 100:
5     sum = sum + i
6     i += 1
7 print(sum)

 1 #6.用户登录，三次机会重试
 2 i = 3
 3 while i > 0:
 4     name = input("请输入您的姓名：")
 5     password = input("请输入您的密码：")
 6     i = i - 1
 7 #假设用户名为：小二；密码为：123456
 8     if name == ‘小二‘ and password == ‘123456‘:
 9             print("登录成功！")
10             break
11     else:
12         print("账号密码不匹配，请重新输入，您还有" +str(i)+ "次机会！")
13     if i == 0:
14         print("当前次数已用完，您的账户已锁定，请联系客服解锁！")