5 HKEY hKey;//句柄const char *key = "System\\CurrentControlSet\\Control\\Session Manager\\Environment"; //注册表路径RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ | KEY_WRITE, &hKey //打开注册表RegSetValueEx(hKey, UGEnv, NULL, REG_SZ, (const unsigned char *)path, strlen(path)); ...
1.环境变量访问(Environment Variable Access): #include <stdlib.h> int main() { char *env_value = getenv("MY_VARIABLE"); if (env_value != NULL) { printf("Value of MY_VARIABLE: %s\n", env_value); } else { printf("MY_VARIABLE not set.\n"); } return 0; } 通过getenv()函数...
4、read 读 5、write 写 6、error 错误 序号 主要章节 常用英汉对照词汇 备注 1 运算符与表达式 ( operator and expression ) 汉语 英语 常量constant 变量variable 标识符 identify 关键字 keywords 符号sign 运算符 operator 语句statement 语法syntax 表达式 Expression 初始化 Initialization 数据格式 number format...
System.Windows.Forms; using System.IO; namespace fso_cs { public partial class Form1 : Form { string winDir = System.Environment.GetEnvironmentVariable("windir"); public Form1() { InitializeComponent(); } private void button1_Click(object sender, System.EventArgs e) { //How to read a ...
ENVIRONMENT ACCOUNT_MODULE_PATH=${CMAKE_CURRENT_SOURCE_DIR} ACCOUNT_HEADER_FILE=${CMAKE_CURRENT_SOURCE_DIR}/account/account.h ACCOUNT_LIBRARY_FILE=$<TARGET_FILE:account> ) 这种方法可能并不总是跨不同平台都健壮,但 CMake 提供了一种绕过这种潜在健壮性不足的方法。以下代码片段等同于上述代码片段,并...
本节的代码可在github.com/dev-cafe/cmake-cookbook/tree/v1.0/chapter-10/recipe-01找到,并包含一个 C++示例。本节适用于 CMake 版本 3.6(及更高版本),并在 GNU/Linux、macOS 和 Windows 上进行了测试。 在本节的第一节中,我们将介绍我们的小项目以及将在后续节中使用的一些基本概念。安装文件、库和可执...
1/***2* environ_init3* Read environment variables that affect the runtime.4* Also print environment variable help, if requested.5***/6voidenviron_init(void)7{8if(issetugid()) {9//All environment variables are silently ignored when setuid or setgid10//This includes OBJC_HELP and OBJC_...
You can read more about creating your own custom notifications and/or hooks here.CLI Environment VariablesThose using the Command Line Interface (CLI) can also leverage environment variables to pre-set the default settings:VariableDescription APPRISE_URLS Specify the default URLs to notify IF none ...
Fatal error C1107could not find assembly 'assembly': please specify the assembly search path using/AIor by setting theLIBPATHenvironment variable Fatal error C1108unable to find DLL: 'file' Fatal error C1109unable to find 'symbol' in DLL 'file' ...
Error "assignment of read-only variable in C" occurs, when we try to assign a value to the read-only variable i.e. constant.In this program, a is a read-only variable or we can say a is an integer constant, there are two mistakes that we have made:...