C++ 中error: ‘exit’ was not declared in this scope 的解决方法

最新推荐文章于 2023-01-04 15:54:08 发布
原创 最新推荐文章于 2023-01-04 15:54:08 发布 · 1w 阅读 · 2 ·
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博客内容提及在代码中添加#include <cstdlib>，这是C++编程里引入标准库的操作，与信息技术中C++开发相关。

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添加

#include <cstdlib>

‘WiFi‘ was not declared in this scope报错处理方法
ZGS_优快云
10-27 4698
造成原因 文件头没有定义相应的函数或变量。 处理办法 文件头添加以下代码 #include <ESP8266WiFi.h>
error: ‘exit’ was not declared in this scope
花园王国---Garden kingdom
01-12 3067
linux 里面C++编程，使用了exit(1)函数出现如下错误：       error: ‘exit’ was not declared in this scope 解决：        头文件添加：#include
[编译错误]:exit was not declared in this scope
飞行员锐克的笔记
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[编译错误]:exit was not declared in this scope 环境:unbuntu 9.10 g++:4.4.1   在Linux C函数手册中查找exit函数的用法,要加入头文件#include 但仍有该错误，后查看书上的相关的源代码，加入,后无此错误。   记录一下。
C:\Users\榛勯摥鍗嶾Desktop\523001\__\__.ino: In function 'void loop()': __:49: error: 'hsv' was not declared in this scope __:52: error: 'updateLED' was not declared in this scope __:53: error: 'updateLED' was not declared in this scope __:54: error: 'updateLED' was not declared in this scope __:55: error: 'updateLED' was not declared in this scope __:56: error: 'updateLED' was not declared in this scope __:57: error: 'updateLED' was not declared in this scope __:58: error: 'r' was not declared in this scope __:58: error: 'g' was not declared in this scope __:58: error: 'b' was not declared in this scope __:58: error: 'updateLED' was not declared in this scope exit status 1 'hsv' was not declared in this scope 你的代码报错了
05-29
在Arduino开发中遇到`'hsv' was not declared`和`'updateLED' was not declared`错误，通常由以下原因导致： - 函数/变量未正确定义 - 声明位置晚于调用位置 - 缺少头文件包含 - 作用域错误（如局部变量全局使用） -...
exit status 1 Compilation error: 'oldPosition' was not declared in this scope
03-19
好的，我现在需要解决用户提到的C/C++编译错误：'oldPosition' was not declared in this scope exit status 1。首先，这个错误通常是因为变量在使用前没有被正确声明。我应该先检查变量作用域的问题。用户提供的...
46 19 C:\Users\Administrator\Desktop\未命名7.cpp [Error] 'exit' was not declared in this scope
10-12
如果编译器报出 "‘exit’ was not declared in this scope" 错误，意味着它找不到你在当前作用域内声明 `exit` 函数。 这可能有以下几个原因： 1. **包含头文件缺失**：忘记包含 `cstdlib` 或者 `<cstdlib>` 这个...
Arduino:1.8.19 (Windows 10), 开发板："Arduino Uno" __3:19:9: error: 'DHTPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:19:9: note: suggested alternative: 'DHT' D:\开源硬件编程\综合2\__3\__3.ino: In function 'void setup()': __3:33:11: error: 'FLAMPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:33:11: note: suggested alternative: 'FLAME_PIN' __3:34:11: error: 'TRIGPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:34:11: note: suggested alternative: 'TRIG_PIN' __3:35:11: error: 'ECHOPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:35:11: note: suggested alternative: 'ECHO_PIN' __3:36:11: error: 'BUZZERPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:36:11: note: suggested alternative: 'BUZZER_PIN' __3:37:11: error: 'LEDPIN' was not declared in this scope __3:38:11: error: 'BUTTONPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:38:11: note: suggested alternative: 'BUTTON_PIN' D:\开源硬件编程\综合2\__3\__3.ino: In function 'void loop()': __3:54:26: error: 'MQ2PIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:54:26: note: suggested alternative: 'MQ2_PIN' __3:55:28: error: 'FLAMPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:55:28: note: suggested alternative: 'FLAME_PIN' __3:78:19: error: 'BUTTONPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:78:19: note: suggested alternative: 'BUTTON_PIN' __3:79:18: error: 'BUZZERPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:79:18: note: suggested alternative: 'BUZZER_PIN' D:\开源硬件编程\综合2\__3\__3.ino: In function 'int getDistance()': __3:87:16: error: 'TRIGPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:87:16: note: suggested alternative: 'TRIG_PIN' __3:93:27: error: 'ECHOPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:93:27: note: suggested alternative: 'ECHO_PIN' D:\开源硬件编程\综合2\__3\__3.ino: In function 'void checkAlarm(float, int, bool)': __3:133:18: error: 'BUZZERPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:133:18: note: suggested alternative: 'BUZZER_PIN' __3:134:18: error: 'LEDPIN' was not declared in this scope __3:139:18: error: 'BUZZERPIN' was not declared in this scope D:\开源硬件编程\综合2\__3\__3.ino:139:18: note: suggested alternative: 'BUZZER_PIN' __3:140:18: error: 'LEDPIN' was not declared in this scope exit status 1 'DHTPIN' was not declared in this scope 在文件 -> 首选项开启 “编译过程中显示详细输出”选项 这份报告会包含更多信息。 显示这样是怎么回事
最新发布
06-06
我们注意到用户提供的代码中，引脚定义使用了#define预处理指令，但是这些定义位于函数体外部，并且没有语法错误。然而，如果用户遇到了未声明错误，可能是以下原因：1.代码中确实没有定义这些引脚，或者定义被意外...
C++错误“exit was not declared in this scope”
longshengguoji的专栏
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要加入头文件#include 和 错误解决
[Error] 'exit' was not declared in this scope的解决方法
weixin_34342992的博客
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新手刚开始用Linux和c++写程序，可能会出现下面的错误 error: ‘exit’ was not declared in this scope 解决方法是 添加 #include <cstdlib> 转载于:https://www.cnblogs.com/xisheng/p/7822579.html...
error: ‘exit’ was not declared in this scope 的解决方法
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