控制迴圈的工具:break 與 continue 陳述句。 使用break 陳述句跳出迴圈 使用else陳述句檢查break是否被呼叫 使用continue 陳述句跳到下一圈 迴圈到底會幫什麼忙呢? Pythonfor迴圈,可以幫你執行類似的重複事情。 重複的事?聽起來無關緊要,來看看一個小例子,讓你對於重複的事稍微有個概念。 這個例子是這樣的,用...
示例代码如下:classBreakLoop(Exception):passtry:foriinrange(10):forjinrange(10):ifi*j>20:raise...
(2)continue控制循环str1 = 'itheima' for i in str1: if i == 'e': print('遇到e不打...
# This is a program to illustrate the useage of break in Python. # What if we want to jump out of the loop completely—never finish counting, or give up # waiting for the end condition? break statement does that. # *** for i in range (1,6): print print 'i=',i, print 'Hello...
iteration of the loop and skip ahead to the next# continue statement is what you need.# ***foriinrange(1,6):printprint'i=',i,print'Hello,how',ifi==3:continueprint'are you today?' 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 执行结果例如以下: >>> === RESTART ===...
本文的主要内容是 Python 的条件和循环语句以及与它们相关的部分. 我们会深入探讨if, while, for以及与他们相搭配的else,elif,break,continue和pass语句. 本文地址:http://www.cnblogs.com/archimedes/p/python-loop.html,转载请注明源地址。 1.if语句
3.2.4:for基于range()实现计数循环 3.2.5:for与break,continue,else 3.2.6:for语句小结 一.if语句 1.1 功能 计算机又被称作电脑,意指计算机可以像人脑一样,根据周围环境条件(即expession)的变化做出不同的反应(即执行代码) if语句就是来控制计算机实现这一功能 ...
2.2.4:while与break,continue,else连用 count=0 while (count < 9): count+=1 if count == 3: print('跳出本层循环,即彻底终结这一个/层while循环') break print('the loop is %s' %count) 1. 2. 3. 4. 5. 6. 7. break跳出本层循环 ...
In code writing, we use the most is to select the structure and loop structure, next, Xiaobian for you to introduce the Python loop structure in a shallow way.1、for···in···格式: for参数in循环体: pass 上述格式中,可以做循环体的内容有很多,如元组、列表、字符串等等。只要...
We can also terminate the while loop using the break statement. For example, i = 0 while i < 5: if i == 3: break print(i) i += 1 Run Code Output 0 1 2 In the above example, if i == 3: break terminates the loop when i is equal to 3. Python continue Statement The contin...