Explore how to emulate a "do-while" loop in Python with our short tutorial. Plus discover how to use it in data science tasks.
首先,Python 离底层应用编程太远了,就不用考虑汇编指令的优化了,同时,它也不涉及宏的使用。 至于“条件前置”和“条件后置”的区别,其实并没有太大影响,而且,由于 Python 使用简洁优雅的缩进加冒号语法来划分代码块,导致直译过来的 do-while 语法看起来会很怪异(注意,直译的 while 的条件后没有其它内容): do:...
while loop do...while loop In the previous tutorial, we learned about for loop. In this tutorial, we will learn about while and do..while loop. while loop The syntax of the while loop is: while (testExpression) { // the body of the loop } How while loop works? The while loop ev...
while 判断条件condition: 执行语句statements 1. 2. 同样需要注意冒号和缩进。另外,在 Python 中没有 do..while 循环。 以下实例使用了 while 来计算 1 到 100 的总和: sum = 0 counter = 1 while counter <= 100: sum = sum + counter counter += 1 print("1 到 %d 之和为: %d" % (100, sum...
Do not forget to increase the variable used in the condition, otherwise the loop will never end!Exercise? What is a key difference between a do/while loop and a while loop? A do/while loop will execute the code block at least once, even if the condition is false. A do/while loop ...
Python for循环可以遍历任何序列的项目,如一个列表或者一个字符串。 for循环的一般格式如下: forvariable> insequence>: <statements> else: <statements> 1. Python loop循环实例: 实例 >>>languages["C", "C++", "Perl", "Python"]forxinlanguages: ... print(x)CC++ PerlPython >>> ...
在Python中,循环结构主要由 **`while`** 和 **`for`** 两种关键字构成。详细分析如下:1. **选项A(while)**:正确。`while` 是Python的核心循环结构之一,语法为 `while 条件: ...`,当条件满足时重复执行循环体。2. **选项B(loop)**:错误。Python没有 `loop` 关键字。其他语言可能使用 `loop`(如Ru...
0 1 1 2 3 5 8 13 0 1 1 2 3 5 8 13 Element #1: 0 Element #2: 1 Element #3: 1 Element #4: 2 Element #5: 3 Element #6: 5 Element #7: 8 Element #8: 13 Number of elements in the array: 8 更多foreach 内容可以参考:C# 中 foreach 遍历的用法 ...
...而for循环以及while循环是先执行条件判断,满足条件再执行循环体。也就是说do while循环可以确保循环体至少运行一次。...do { body; } while (test-condition); 基于范围的for循环(C++11) 在C++11当中新增了一种特性,可以基于范围进行for循环,有些类似于Python...
The while loop in C is used when we don’t know the number of iterations.while loop Flowchart Syntax while(test condition){ //code to be executed } If the test condition inside the () becomes true, the body of the loop executes else loop terminates without execution. The process ...