string - 如何在参数中使用变量

Question

我需要知道如何在参数中使用变量 PROCESS 被初始化为 string PROCESS在类参数中。

Process::GetProcessesByName("")

当我用变量替换字符串时，这给了我一个错误

Process::GetProcessesByName(PROCESS)

我得到的错误是：没有重载函数的实例“System::Diagnostics::Process::GetProcessByName”匹配参数列表参数类型是（std::string）

Answer 1

I think GetProcessesByName may take a parameter as LPSTR or char const *, but not a std::string,

try use

Process::GetProcessesByName(PROCESS.c_str());

or if your PROCESS is defined as std::string PROCESS;,

   String^ process_name = gcnew String(PROCESS.c_str());
   Process::GetProcessesByName(process_name);