如何在 C++ 中的特定坐标处将字符串打印到控制台？

How can I print a string to the console at specific coordinates in C++?

提问by Shawn

I'm trying to print characters in the console at specified coordinates. Up to now I have been using the very ugly printf("\033[%d;%dH%s\n", 2, 2, "str");But I just had to ask whether C++ had any other way of doing this. The problem is not even that it's ugly, the problem comes up when I try to make myself a prettier function like so:

我正在尝试在控制台中的指定坐标处打印字符。到目前为止，我一直在使用非常丑陋的printf("\033[%d;%dH%s\n", 2, 2, "str");但我只需要问 C++ 是否有其他方法可以做到这一点。问题甚至不在于它丑陋，当我试图让自己成为一个更漂亮的函数时，问题就出现了：

void printToCoordinates(int x, int y, string text)
{
    printf("3[%d;%dH%s\n", x, x, text);
}

It doesn't work, even if I typecast to (char*). Another problem is that I have to print out the \nfor the page to be refreshed... I just don't enjoy using printfin general.

它不起作用，即使我将类型转换为(char*). 另一个问题是我必须打印出来\n才能刷新页面...我只是不喜欢使用printf一般。

Similarily to using coutinstead of printf, I believe there should be a more recent way of doing this (ideally a way that allows me to easily write strings where I want on the screen, and ideally a way that doesn't required these weird symbols: \033[%d;%dH)

以相若方式使用cout，而不是printf，我认为应该有一个更近的这样的方式（最好的方式，让我去，我想在屏幕上轻松写字符串，最好是不要求这些奇怪的符号的方式：\033[%d;%dH）

So, do any of you have what I'm looking for?

那么，你们中有人有我要找的东西吗？

采纳答案by CB Bailey

What you are doing is using some very terminal specific magic characters in an otherwise pure C++ application. While this works, you will probably have a far easier time using a library which abstracts you from having to deal with terminal specific implementation details and provides functions that do what you need.

您正在做的是在其他纯 C++ 应用程序中使用一些非常终端特定的魔法字符。虽然这有效，但您可能会更轻松地使用一个库，该库使您不必处理终端特定的实现细节并提供执行您需要的功能。

Investigate whether curses or ncurses libraries are available for your system.

调查curses 或ncurses 库是否可用于您的系统。

回答by Dima

Cursesis what you are looking for.

诅咒就是你要找的。

回答by Jacob

I remember using gotoxy(x,y)in Turbo C++ (conio.h) - don't know if it'll work for you though. It moves the cursor to the coordinates specified by xand y.

我记得gotoxy(x,y)在 Turbo C++ (conio.h) 中使用过 - 不过不知道它是否适合你。它将光标移动到由x和指定的坐标y。

EDIT:If you're using Windows, here's a gotoxyclone:

编辑：如果您使用的是 Windows，这里有一个gotoxy克隆：

#include <windows.h>

void gotoxy(int x, int y)
{
  COORD coord;
  coord.X = x;
  coord.Y = y;
  SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), coord);
}

回答by Greg Hewgill

A few improvements to your function:

对您的功能的一些改进：

void printToCoordinates(int x, int y, const char *format, ...)
{
    va_list args;
    va_start(args, format);
    printf("3[%d;%dH", x, y);
    vprintf(format, args);
    va_end(args);
    fflush(stdout);
}

This version:

这个版本：

• allows you to use any arbitrary format string and variable argument lists
• automatically flushes stdoutwithout printing a newline
• uses xand yin the format string (your use of xand xmay have been a typo)

• 允许您使用任意格式的字符串和变量参数列表
• 自动刷新stdout而不打印换行符
• 在格式字符串中使用x和y（您使用x和x可能是一个错字）

However, because varargs is essentially a C feature and doesn't really understand C++ objects, you'd have to call it like this:

然而，因为 varargs 本质上是一个 C 特性并且并不真正理解 C++ 对象，所以你必须像这样调用它：

printToCoordinates(10, 10, "%s", text.c_str());

A better option really is to use curses (for Unix-like platforms) or Win32 console functions (for Windows) as mentioned in other answers.

更好的选择确实是使用其他答案中提到的curses（对于类Unix平台）或Win32控制台函数（对于Windows）。

回答by sbi

First:

第一的：

void printToCoordinates(int x, int y, string text)
{
    printf("3[%d;%dH%s\n", x, x, text);
}

You don't want to copy the string argument, you want to pass it by (const) reference. Also, the (only) right way to get a char*from a std::stringis to call its c_str()member function:

您不想复制字符串参数，而是想通过 ( const) 引用传递它。此外，char*从 a获取 a 的（唯一）正确方法std::string是调用其c_str()成员函数：

void printToCoordinates(int x, int y, const std::string& text)
{
    printf("3[%d;%dH%s\n", x, x, text.c_str());
}

As to your question: C++ has no way to do what you want, but it allows you to use platform-specific ways to do it. You would have to tell us your platform in order to get meaningful answers.

至于你的问题：C++ 没有办法做你想做的事，但它允许你使用特定于平台的方式来做到这一点。您必须告诉我们您的平台才能获得有意义的答案。

回答by shrinjoy biswas

void screenpos(int x,int y,char textyowanawrite[20])
{
//printf for right shift
// \n for downward shift
//loops through the rows and shifts down 
for(int row=0;row<=y;row++)
{
printf("\n");
for (int i = 0; i < x; i++)
{
printf("%s "," " );
}
}
printf("%s ",textyowanawrite );
} 

//this should work to certain extinct only problem is u cant go from somewhere like 4,4 to 2,2 thats the problem

//这应该对某些灭绝起作用，唯一的问题是你不能从 4,4 到 2,2 这样的地方，这就是问题

回答by Reaganrewop

I have a little different method. Not sure whether this is better than ncurses package, so i leave that for the upvoters to decide.

我有一点不同的方法。不确定这是否比 ncurses 包更好，所以我把它留给支持者来决定。

You can use Graphicspackage in C++ to output a text to a specific coordinate on your working screen. The syntax is outtextxy(x, y, text) ;Where x & y are coordinates.

您可以使用C++ 中的Graphics包将文本输出到工作屏幕上的特定坐标。语法是outtextxy(x, y, text) ;其中 x & y 是坐标。

One example is:

一个例子是：

int main(void) {

    int gdriver = DETECT, gmode;

 ?? int x = 200, y = 200;

 ?

 ?? initgraph(&gdriver, &gmode, "c:\tc\bgi");

 ?

 ?? outtextxy(x, y, "Hello World");

 ?? closegraph();

 }

This little program will print Hello Worldin the coordinate (200,200).

这个小程序将在坐标 (200,200) 中打印Hello World。

For reference to what graphics package can do visit this link

有关图形包可以做什么的参考，请访问此链接