> For the complete documentation index, see [llms.txt](https://docs.1l.lol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.1l.lol/basics/comments-debug.md).

# 注释与调试

### 注释

注释用于说明代码，不参与编译。

```cpp
// 单行注释

/*
   多行注释
   可以写多行说明
*/

int a = 10;  // 行尾注释
```

快捷键：Dev-C++ 中 `Ctrl+/` 可注释/取消注释选中行。

### 调试的常用手段

1. **输出中间结果**：在关键位置 `cout` 变量值，观察变化。
2. **断点调试**：在行号处点击设断点，运行到此处暂停，单步执行查看变量。
3. **对比样例**：用题目给的样例输入，核对输出是否一致。

### 常见错误类型

| 类型   | 说明               |
| ---- | ---------------- |
| 编译错误 | 语法错误，如少了分号、括号不匹配 |
| 运行错误 | 如除以 0、数组越界、死循环   |
| 逻辑错误 | 能运行但结果不对，需靠调试发现  |

### 调试小技巧

* 数组越界时，把数组开大一点试试。
* 输出格式错误（多空格/换行）也会判错。
* 变量未初始化是常见坑点，定义时尽量赋初值。


---

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