1,使用while循環輸入 1 2 3 4 5 6 8 9 10
n = 1
while n < 11:
if n == 7:
pass
else:
print(n)
n = n + 1
print("---end---")
2，求1 - 100的所有數的和
n = 1
s = 0
while n < 101:
s = s + n
n = n + 1
print(s)
3，輸出 1 - 100內的所有奇數
n = 1
while 1 < 101:
temp = n % 2
if temp == 0:
pass
else:
print(n)
n = n + 1
print("---end---")
4，輸出 1 - 100內的所有偶數
n = 1
while 1 < 101:
temp = n % 2
if temp == 0:
print(n)
else:
pass
n = n + 1
print("---end---")
5，求1-2+3-4+5...99的所有數的和
s = 0
n = 1
while n < 101:
temple = n % 2
if temple == 0:
s = s - n
else:
s = s + n
n = n + 1
print(s)
6，用戶登陸（三次機會重試）
count = 0
while count < 3:
user = input(">>>")
pwd = input(">>>")
if user == "321" and pwd == "123":
print("歡迎登陸")
break
else:
print("用戶名或密碼錯誤")
count = count + 1