本文介绍了在C ++中将双精度转换为字符串的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
Hi guys
我有一些问题,试图将双转换为C ++字符串。这是我的代码
Hi guys I am having some issues trying to convert a double to C++ string. Here is my code
std::string doubleToString(double val)
{
std::ostringstream out;
out << val;
return out.str();
}
我遇到的问题是如果double传递为'10000000' 。然后返回的字符串值是1e + 007
The problem I have is if a double is being passed in as '10000000'. Then the string value being returned is 1e+007
如何获得字符串值为10000000
How can i get the string value as "10000000"
推荐答案
#include <iomanip>
using namespace std;
// ...
out << fixed << val;
// ...
您也可以考虑使用 setprecision
设置小数位数:
You might also consider using setprecision
to set the number of decimal digits:
out << fixed << setprecision(2) << val;
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