我怎么能一个int映射到C / C对应的字符串++ [英] how can I map an int to a corresponding string in C/C++

问题描述

我的 20位，我想将它们与字符串相关联。有没有除了使用一个开关case语句来实现这个更快的方法。

我需要一个int转换为相应的字符串和数字不一定包装。有些code在的Qt 还有可能是有用的？

例如：下面的数字和字符串相互关联，

  1：请求系统信息2：更改系统信息10：未知错误
 

解决方案

使用地图更简单的方法

的std ::地图＆LT; INT，标准::字符串＆GT; MyMap中;
mymap中[1] =富;
mymap中[10] =酒吧;
// ...
INT IDX = 10;
标准::字符串查询= MyMap中[IDX];


I have 20 digits and I would like to associate them with strings. Is there a faster way besides using a switch case statement to achieve this.

I need to convert an int to a corresponding string and the numbers aren't necessarily packed. Some code in Qt as well might be useful?

Example: The following digits and strings are associated with each other,

1:   "Request System Info"

2:   "Change System Info"

10:  "Unkown Error"

解决方案

easier way to use map

std::map<int, std::string> mymap;
mymap[1] = "foo";
mymap[10] = "bar";
// ...
int idx = 10;
std::string lookup = mymap[idx];

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