Unity之修复个别手机小数精度问题

部分手机字符串转小数时，可能会出现精度问题，用如下接口代替 float.Parse()和float.TryParse()可解决问题，代码如下：

    static StringBuilder s_sb = new StringBuilder();
    
    
    public static bool TryParseFloat(this string strFloat, out float result)
    {
        result = 0;
        if (string.IsNullOrEmpty(strFloat))
            return false;

        int indexOfDot = strFloat.IndexOf('.');
        if (indexOfDot < 0)
            return float.TryParse(strFloat, out result);

        int curDecimalCount = strFloat.Length - indexOfDot - 1;
        int clipCount = curDecimalCount - 4;
        string str;
        if (clipCount > 0)
        {
            int newLen = strFloat.Length - clipCount;
            str = strFloat.Substring(0, newLen);
        }
        else if (clipCount == 0)
        {
            str = strFloat;
        }
        else
        {
            s_sb.Length = 0;
            s_sb.Append(strFloat);
            clipCount = -clipCount;
            for (int i = 0; i < clipCount; i++)
                s_sb.Append("0");
            str = s_sb.ToString();
        }
        str = str.Replace(".", "");

        if (int.TryParse(str, out int result2))
        {
            result = result2 / 10000f;
            return true;
        }

        return false;
    }

    public static float ParseFloat(this string strFloat)
    {
        if (string.IsNullOrEmpty(strFloat))
            return 0;

        strFloat.TryParseFloat(out float result);
        return result;
    }

 

转载请注明出处：https://www.cnblogs.com/jietian331/p/15469774.html