defloop():#定义一个函数foriin'abc':forjinrange(3):print(i,j)if(i,j)==('b',1):print('Done')returni,j#满足条件即结束函数,函数内的循环也随之中断,将函数内的局部变量i,j返回endi,endj=loop()#运行这个函数,将返回的内部变量i,j的数值分别命名为endi和endj 3中这类方法(一次性跳出所有循环)...
In Python, theforloop is used to iterate over a sequence such as alist, string,tuple, other iterable objects such asrange. With the help offorloop, we can iterate over each item present in the sequence and executes the same set of operations for each item. Using aforloops in Python we...
for i in range(3): if i == 2: break print(i, end=' ') # 打印0和1 else: print("Loop completed without encountering a 'break' statement.")5.循环控制语句：range()函数：生成一个起始默认为0的序列，通常与for循环一起使用。def print_numbers(n): for i in range(1, n+1): print(i)...
continue: 使用后,在当前循环终止命令,直接进入下个循环 而break 与 countine 都是作用于单个循环,如果想要进行多层循环操作,则需要在后面加数字,如 break 2和continue 2。 正常二层循环 例:在未加入上述命令前,先看看下面二层循环的正常输出。 #!/bin/bash for ((a=1; a<=3; a++)) //外层循环 do ec...
The break statement is used to exit the for loop prematurely. It’s used to break the for loop when a specific condition is met. Let’s say we have a list of numbers and we want to check if a number is present or not. We can iterate over the list of numbers and if the number ...
break的作用：用来结束整个循环。二、continue 1、 带有continue的for循环示例如下:name = 'dongGe'for ...
However, the loop continues to the next iteration. This is why C++ is displayed in the output. Visit Python break and continue article to learn more. Nested for loops A loop can also contain another loop inside it. These loops are called nested loops. In a nested loop, the inner loop ...
print("Loop completed without break") 输出: 0 1 2 3 4 Loop completed without break 4. 使用异常处理 可以通过抛出异常来跳出循环,尤其是在需要从嵌套循环中退出时。 示例 python try: for i in range(3): for j in range(3): if i == 1 and j == 1: ...
for语句实际上解决的是循环问题。在很多的高级语言中都有for循环(for loop)。 for语句其实是编程语言中针对可迭代对象的语句,它的主要作用是允许代码被重复执行。看一段来自维基百科的介绍: Incomputer science, afor-loop(or simplyfor loop) is acontrol flowstatementfor specifyingiterati...
七、表达式while loop 八、表达式for loop 一、Python介绍及应用方向 python的创始人为吉多·范罗苏姆(Guido van Rossum)。 1989年的圣诞节期间,吉多·范罗苏姆为了在阿姆斯特丹打发时间,决心开发一个新的脚本解释程序,作为ABC语言的一种继承。 Python崇尚优美、清晰、简单,是一个优秀并广泛使用的语言。