python while condition: # 循环体 示例 python # 基本用法 count = 0 while count < 5: print(count) count += 1 # 输出: # 0 # 1 # 2 # 3 # 4 # 无限循环(需谨慎使用) while True: user_input = input("Type 'exit' to stop: ") if user_input == 'exit': break # 退出循环 关键点...
"try:#Create an AF_INET (IPv4), STREAM socket (TCP)tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)exceptsocket.error, e:print'Error occurred while creating socket. Error code: '+str(e[0]) +' , Error message : '+ e[1] sys.exit(); tcp_socket.connect((TCP_IP, TC...
user_input = input("输入 'exit' 退出: ") if user_input == "exit": break 1. 2. 3. 4. 5. 6. 7. • 注意:若循环条件始终为真且无退出机制,会导致死循环。 3.嵌套循环 # 打印 9x9 乘法表(外层循环控制行,内层控制列) i = 1 while i <= 9: j = 1 while j <= i: print(f"{...
protectedResource ='http://localhost/secured_path'foundPass =Falseforuserinusers:iffoundPass:breakforpasswdinpasswords: encoded = base64.encodestring(user+':'+passwd) response = requests.get(protectedResource, auth=(user,passwd))ifresponse.status_code !=401:print('User Found!')print('User: %s...
EXEC sp_execute_external_script @language = N'Python' , @script = N' OutputDataSet = InputDataSet' , @input_data_1 = N'select 1' , @input_data_1_name = N'InputDataSet' , @output_data_1_name = N'OutputDataSet' WITH RESULT SETS (([output] int not null)); 輸出 ...
在SQL Server 2016 上运行 R Server 8.0.3 时,可能会收到错误消息:You are running version 9.0.0 of Microsoft R client on your computer, which is incompatible with the Microsoft R server version 8.0.3. Download and install a compatible version.以下修补程序可确保 SQL Server 2...
elif ans=="no":con_exit=1returncon_exitelse:print("Answer with yes or no.")ask_for_confirm()defdelete_files(ending):forr,d,finos.walk(backup_dir):forfilesinf:iffiles.endswith("."+ending):os.remove(os.path.join(r,files))backup_dir=input("Enter directory to backup\n")# Enter dire...
Every process, on exit, should return an integer. This integer is referred to as the return code or exit status. Zero is synonymous with success, while any other value is considered a failure. Different integers can be used to indicate the reason why a process has failed. In the same ...
user has solved the puzzle:ifSOLVED_TOWERin(towers["B"],towers["C"]):displayTowers(towers)# Display the towers one last time.print("You have solved the puzzle! Well done!")sys.exit()defgetPlayerMove(towers):"""Asks the player for a move. Returns (fromTower, toTower)."""whileTrue...
Because the condition now evaluates to False, you will exit the while loop and continue your program if it contains any more code. In this case, there isn't any more code so your program will stop. The above example is a bit basic, you can also include conditionals, or, in other ...