循环控制主要包括三种: pass 、 continue 、 break 。 pass 表示什么也不做,只是占一行代码的位置;continue 表示立即退出本轮循环,继续执行后续轮循环;break 表示立即推出循环,后续循环也不再执行。 for x in xrange(0, 10): if x == 5: pass else: print xfor x in xrange(0, 10): if x == 5: ...
Using a backslash (\) at the end of each line is a method to visually break a long line of code into multiple lines, making it more readable. This is particularly useful when dealing with complex conditions inifstatements. Also, the backslash at the end of each line indicates a continuati...
方式打开,并打印每一行文本,并要求文件路径考虑跨平台问题 import os baseDir = r'C:\Users\haora' filename = 'test.txt file_path = os.path.join(baseDir,filename) with open(file_path,'r') as f: for line in f.readlines(): print(line) 1. 2. 8、有processFunc变量,初始化为processFunc...
2. while循环:条件式循环 当条件为True时持续执行,需手动更新条件变量或使用break退出: python count = 0 while count < 5: print(count) # 输出:0, 1, 2, 3, 4 count += 1 二、循环控制语句 1. break:立即终止循环 python for i in range(10): if i == 5: break # 当i=5时退出循环 print...
") break # 检查玩家输入是否有效 if player_choice not in options: print("输入无效,请输入 石头、剪刀 或布。") continue # 计算机随机选择 computer_choice = random.choice(options) # 输出双方的选择 print(f"你出了 {player_choice},计算机出了 {computer_choice}。") # 判断胜负 if player_choice ...
In order to work further with this code, you can recall it at the>>>prompt and edit it, but this becomes very unwieldy, very quickly. Recall that once the code you’re working with at the>>>prompt is more than a few lines long, you’re better off copying the code into an IDLE ...
{status}...", LOG_INFO_TYPE) if schedule == "100" and status == "successful": ret = OK break elif schedule == "100" and status == "failed": break else: cnt += 1 sleep(10) sleep(10) return ret @ops_conn_operation def patch_active_proc(self, patch_name='', ops_conn=None...
You may want to ignore parsing errors when using streaming parsers since these may be used in long-lived processing pipelines and errors can break the pipe. To ignore parsing errors, use the -qq cli option or the ignore_exceptions=True argument with the parse() function. This will add a ...
some_tuple = (1, 2, 3, 'a') some_variable = { 'long': 'Long code lines should be wrapped within 79 characters.', 'other': [ math.pi, 100, 200, 300, 9876543210, 'This is a long string that goes on'], 'more': { 'inner': 'This whole logical line should be wrapped.', ...
The above line is kind of long -- suppose you want to break it into separate lines. You cannot just split the line after the '%' as you might in other languages, since by default Python treats each line as a separate statement (on the plus side, this is why we don't need to typ...