python while语句

while 判断条件：       #在给定的判断条件为 true 时执行循环体，否则退出循环体
    执行语句
count = 0
while (count < 3):
   print ('The count is:', count)
   count = count + 1
print ("Good bye!")
The count is: 0
The count is: 1
The count is: 2
Good bye!