9.循环
死循环
while 1==1:
print('ok')
程序1-------------
import time
count = 0 while count < 10: print('ok',time.time()) count = count + 1print('final')程序2-------------
求1--100的和
a = 1
b = 0while a < 101: b = b + a a = a + 1print(b)
程序3---------
输出1--100内所有的奇数
a = 1
while a < 101: if a % 2 == 1: print(a) else: pass a = a + 1
程序4-------------------
输出 1 2 3 4 5 6 8 9 10
a = 1
while a < 11: if a != 7: print(a) else: pass a = a + 1程序5---------
输出 1---100之内所有的偶数
a = 1
while a < 101: if a % 2 ==0: print(a) else: pass a = a + 1程序6------------------
输出1 - 2 + 3 - 4 + 5 - 6 …………- 98 + 99的结果
a = 1
b = 0while a < 100: if a % 2 == 1: b = b + a else: b = b - a a = a + 1print(b)