Python--循环--for && while

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Python--循环--for && while

for循环示例：猜数字游戏

 1 winning_number = 38
 2 for i in range(3):
 3     guess_num = int(input("guess num:") )
 4     if guess_num == winning_number :
 5         print("yes, you got it. ")
 6         break
 7     elif guess_num < winning_number:
 8         print("think smaller...")
 9     else:
10         print("think bigger!")
11 else:
12     print("you have tried too many times..")

while循环示例：死循环

1 count = 0
2 while True:
3     print("I love You!!!---%d" %(count))
4     count += 1
5     if count > 999:
6         break

while循环示例：猜数字游戏

 1 winning_number = 38
 2 count = 0
 3 while count <3:
 4     guess_num = int(input("guess num:") )
 5     if guess_num == winning_number :
 6         print("yes, you got it. ")
 7         break
 8     elif guess_num < winning_number:
 9         print("think smaller...")
10     else:
11         print("think bigger!")
12     count +=1
13 else:
14    print("you have tried too many times..")

while循环升级：根据用户输入来决定是否终止游戏

 1 winning_number = 38
 2 count = 0
 3 while count <3:
 4     guess_num = int(input("guess num:") )
 5     if guess_num == winning_number :
 6         print("yes, you got it. ")
 7         break
 8     elif guess_num < winning_number:
 9         print("think smaller...")
10     else:
11         print("think bigger!")
12     count +=1
13     if count == 3:
14         countine_confirm = input("do you want to keep guessing..?")
15         if countine_confirm != 'n':
16             count =0

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