如何在c++/CLR中连接数字

#include <msclr/marshal_cppstd.h>

int number1 = 123;
double number2 = 456.78;

// 使用String::Format拼接数字
System::String^ result = System::String::Format("Number 1: {0}, Number 2: {1}", number1, number2);

// 如果需要转换为标准C++字符串
std::string nativeResult = msclr::interop::marshal_as<std::string>(result);

#include <sstream>
#include <msclr/marshal_cppstd.h>

int number1 = 123;
double number2 = 456.78;

// 使用ostringstream拼接数字
std::ostringstream oss;
oss << "Number 1: " << number1 << ", Number 2: " << number2;
std::string nativeResult = oss.str();

// 如果需要转换为System::String^
System::String^ result = msclr::interop::marshal_as<System::String ^>(nativeResult);

// 错误的格式化字符串
System::String^ incorrectFormat = System::String::Format("Number: {0}", 123.456);

// 正确的格式化字符串
System::String^ correctFormat = System::String::Format("Number: {0:F2}", 123.456); // 显示两位小数

// 错误的类型转换
std::string wrongConversion = (std::string)result; // 不应该直接这样转换

// 正确的类型转换
std::string correctConversion = msclr::interop::marshal_as<std::string>(result);