首先for就是代表for陳述句,這個陳述的尾端一定要加上冒號:,Python才會知道有重複性質的工作要做囉,而且要做的事情必須縮排呈現,才是for的工作範圍。 for陳述句的功能是要幫你執行性質類似的重複工作,印出1到10的每個整數,就是從1開始,後一個數字是前一個數字加1(就是間隔1),這樣的重複性工作。 變數i i是...
loop:1loop:2loop:3loop:4loop:5loop:6loop:7loop:8loop:9 需求一:还是上面的程序,但是遇到大于5的循环次数就不走了,直接跳出本次循环进入下一次循环 foriinrange(10):ifi>5:continue#不往下走了,跳出本次循环直接进入下一次循环print("Result:", i ) Result: 0 Result: 1 Result: 2 Result: 3 Resu...
An unknown number of times: For example, Ask the user to guess the lucky number. You don’t know how many attempts the user will need to guess correctly. It can be 1, 20, or maybe indefinite. In such cases, use awhileloop. Fixed number of times: Print the multiplication table of 2...
Incomputer science, afor-loop(or simplyfor loop) is acontrol flowstatementfor specifyingiteration, which allows code to beexecutedrepeatedly。(作用:介绍了for循环是什么?) A for-loop has two parts: a header specifying the iteration, and a body which is executed once per...
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: In computer science, afor-loop(or simplyfor loop) is a control flow statement for specifyingiteration, which allows code to be executed repeatedly。(作用:介绍了for循环是什么?) ...
在这个示例中,我们首先创建了一个包含1到10的数字列表numbers,然后使用for循环遍历该列表,并将每个数字的平方添加到新的列表squared_numbers中。最后,我们打印出squared_numbers的结果,即每个数字的平方。 流程图 下面是一个表示上述操作流程的流程图: StartCreateListForLoopAddToNewListEnd ...
In computer science, afor-loop(or simplyfor loop) is a control flow statement for specifying iteration, which allows code to be executed repeatedly。(作用:介绍了for循环是什么?) A for-loop has two parts: a header specifying the iteration, and a body which is executed once per iteration. (...
Python’s for loop iterates over items in a data collection, allowing you to execute code for each item. To iterate from 0 to 10, you use the for index in range(11): construct. To repeat code a number of times without processing the data of an iterable, use the for _ in range(...
a.for循环：迭代序列 Python中的for循环特别适用于迭代序列（如列表、元组、字符串或范围），并对序列中...
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 specifyingiteration, which allows code to be...