string类型版本号比较

直接上代码吧：

boolean CompareVersion(string softVersion1, string softVersion2)
{
if (softVersion1.compare(softVersion2) >= 0)
{
return true;
}
return false;
}

void main(void)
{
    string appVersion = "1.4.2";
    string softVersion = "1.5.0";
    if (CompareVersion(appVersion, softVersion))
    {
        printf("appVersion 版本大于softVersion 版本");
    }
    else
    {
        printf("appVersion 版本小于softVersion 版本");
    }
}

参考：http://blog.csdn.net/atvhghnhtb/article/details/24248469