Python - 循环数字并连接字符串 [英] Python - loop through numbers and concatenate a string

问题描述

练习：

循环数字0到7（包含7个）并连接一个字符串

和逗号分隔的数字。你应该在字符串的末尾加一个逗号。



我尝试过：



for num in range（8）：

num = str（num）+，



我可以不明白这个问题，因为它不是我的主要语言，但出了什么问题？

Exercise:
Loop through the numbers 0 to 7 (7 included) and concatenate a string
with the numbers comma-separated. You should have a comma at the end of the string.

What I have tried:

for num in range(8):
num = str(num) + ","

I may not understand the question right since it's not my main language but what is wrong?

推荐答案

甚至不确定你要做什么。你的代码没有输出，第二行看起来不对。

使用调试器查看你的代码在做什么，并尝试按预期工作，wjat没有。



有一个工具可以让你看到代码在做什么，它的名字是调试器。它也是一个很好的学习工具，因为它向你展示了现实，你可以看到哪种期望与现实相符。

当你不明白你的代码在做什么或为什么它做它做的时候，答案就是答案是调试器。

使用调试器查看代码正在执行的操作。只需设置断点并查看代码执行情况，调试器允许您逐行执行第1行并在执行时检查变量。



调试器 - 维基百科，免费的百科全书 [ ^ ]

phpdbg | php调试器 [ ^ ]

PHP程序员的调试技术 [ ^ ]

调试器在这里向您展示您的代码正在做什么，您的任务是比较它应该做什么。

调试器中没有魔法，它没有发现错误，它只是帮助你。当代码没有达到预期的效果时，你就会接近一个错误。

Not even sure what you try to do. Your code have no output and second line look wrong.
Use the debugger to see what your code is doing, and experiment to what works as expected and wjat don't.

There is a tool that allow you to see what your code is doing, its name is debugger. It is also a great learning tool because it show you reality and you can see which expectation match reality.
When you don't understand what your code is doing or why it does what it does, the answer is debugger.
Use the debugger to see what your code is doing. Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute.

Debugger - Wikipedia, the free encyclopedia[^]
phpdbg | php debugger[^]
Debugging techniques for PHP programmers[^]
The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.

这篇关于Python - 循环数字并连接字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！