python基础之while语句操作

时间:2019-10-20
本文章向大家介绍python基础之while语句操作,主要包括python基础之while语句操作使用实例、应用技巧、基本知识点总结和需要注意事项,具有一定的参考价值,需要的朋友可以参考一下。
# i = 0
# while (i < 9):
# print("i ----> ",i)
# i = i + 1
# print(i,"i即将大于或者等于9,while不在执行")

#执行1-100的数字

# a1 = 1
# while a1 <= 100:
# print(a1,end=" ")
# a1 = a1 + 1

#执行100 -1 的数字
# a1 = 100
# while a1 >= 0:
# print(a1,end=" ")
# a1 = a1 - 1

#执行0+1+2+3+4+.....+100 的sum
# count = 0
# sum = 1
# while sum <= 100:
# count = count + sum #0+1+2+3
# sum += 1
# print(count)


#while 循环遍历列表内的值
# List = [1,2,3,4,5,6,7]
# items = len(List)
# count = 0 #表示索引的值
# while count < items:
# print("列表内的值------>:",List[count]) #每次打印索引值
# print("列表的索引的值------>",count)
# count += 1


#猜数字游戏
#1.猜无限次

# res = 999
# while True:
# guess_number = int(input("请输入要猜入的数字:"))
# if res == guess_number:
# print("猜对了,666")
# break #跳出循环,中止
# else:
# if guess_number > res:
# print("猜大了")
# else:
# print("猜小了")

#2.只能猜三次,自动停止程序
# res = 999
# times = 3
# while times > 0:
# guess_number = int(input("请输入要猜入的数字:"))
# if res == guess_number:
# print("猜对了,666")
# # break #跳出循环,中止
# continue #跳出当前循环
# else:
# if guess_number > res:
# print("猜大了")
# else:
# print("猜小了")
# times -= 1 # time = time -1

#3.猜三次,每次提示剩余的次数
# res = 999
# times = 3
# while times > 0:
# guess_number = int(input("请输入要猜入的数字:"))
# if res == guess_number:
# print("猜对了,666")
# if times != 0:
# print("您还剩" + str(times - 1) + "次机会")
# else:
# pass
# else:
# if guess_number > res:
# print("猜大了")
# if times != 0:
# print("您还剩" + str(times - 1) + "次机会")
# else:
# pass
# else:
# print("猜小了")
# if times != 0:
# print("您还剩" + str(times - 1) + "次机会")
# else:
# pass
# times -= 1 # time = time -1


#while 实现1-100以内的奇数,把结果存储在一个list中
# List = []
# i = 1
# while i < 100:
# if i % 2 != 0:
# List.append(i)
# i += 1
# print("新的列表:",List)

#while 语句,用户连续输入10个数字,求10个数字的平均值
List = []
times = 0
while times < 10:
num = int(input("请输入数字:"))
List.append(num)
print("您输入第" + str(times + 1)+"次数字")
times += 1
num1 = 0
for i in range(len(List)):
num1 += List[i]
print(num1/len(List))

#while计算偶数的和
n = 1
sum = 0
while n <= 100:
if n %2 == 0:
n += 1
continue
sum = sum + n
n += 1
print(sum)

#while 的break的实例
while True:
name = input("请输入:")
if name == "stop":
break
else:
print(name)

原文地址:https://www.cnblogs.com/Teachertao/p/11707880.html