将System :: String ^转换为cv :: String

Question

我搜索了一段时间，试图找出是否有类似的问题，但不能。

如何将class Piece(object): def __init__(self, x , y): self.x = x self.y = y def move(self, amount, direction): if direction == 'right': self.x = self.x + amount if direction == 'left': self.x = self.x - amount if direction == 'up': self.y = self.y + amount if direction == 'down': self.y = self.y - amount rook = Piece(0,0) piece = input('What piece would you like to move?') #Assume that the user types rook after this prompt piece.move(4,'right') （从VC ++）转换为System::String^（来自OpenCV）？

cv::String

给出错误

double x, y;
x = 10;
y = 10;
System::String ^ displayString = System::String::Concat("( ", x, " , ", y, " )");
char * test1 = displayString->ToCharArray;
cv::String test = cv::String(test1)

将Severity Code Description Project File Line Suppression State Error C3867 'System::String::ToCharArray': non-standard syntax; use '&' to create a pointer to member RobocopComputerVision RobocopComputerVision .cpp 156 转换为System::String^的最佳方式是什么？

Answer 1

试试这个，

#include <msclr\marshal_cppstd.h>
using namespace msclr::interop;
/* ... ... */
System::String ^ displayString = System::String::Concat("( ", x, " , ", y,")");
cv::String test = marshal_as<std::string>(displayString);