函数将双精度值格式化为字符串

Posted 2021-02-25

This function shows how you can format a double value to a string with a given precision.

std::string formatToString(int precision, double dValue)
  {
    CString sTmpVal;
    CString sFormat;
    sFormat.Format("%%.%df", precision);
    sTmpVal.Format(sFormat, dValue);
    return static_cast<LPCSTR>(sTmpVal);
  }