1. 引入如下头文件 
#include <sstream>
  1. 代码 
double DeleteEndInvalidZero(double origin)
{
	double dRes;
	string strRes;
	ostringstream oss;
	oss << origin;
	strRes = oss.str();
	dRes = stod(strRes);
	return dRes;
}
  1. 结果