unity中Input Axis Horizontal12 is not setup.

问题遇到的现象和发生背景

在3d坦克大战中要控制两个坦克

用代码块功能插入代码，请勿粘贴截图
public enum TankType//枚举坦克类型
{
    Tank_One=1,
    Tank_Two=2,
    Tank_Enemy=3,
}

public class ControlTank : MonoBehaviour
{
    public TankType tankType = TankType.Tank_One;
    public string inputHorizontalStr;
    public string inputVerticalStr;
    public string inputFireStr;
    public Rigidbody _rig;//对象声明之后需要进行实例化才能使用
    public float h_Value;
    public float v_Value;
    public float speed =30;
    public float rotatespeed = 60;
   
    //炮弹
    public GameObject shell;
    public Transform shellPos;
    // public float shellSpeed=10;
    public float minSpeed = 10;
    public float maxSpeed = 20;
    public float currentSpeed = 0;
    public float speedChange = 5;
    public bool IsFire = false;//发射状态

    //坦克血量
    public float PH = 15;
    public Slider phSlider;
    

    //坦克爆炸
    public ParticleSystem tankExplosion;

    

    // Start is called before the first frame update
    void Start()
    {
       TankInitilization();
    }

    //坦克初始化
    void TankInitilization()
    {
        _rig = this.gameObject.GetComponent();
        inputHorizontalStr = inputHorizontalStr + (int)tankType;
        inputVerticalStr = inputVerticalStr + (int)tankType;
        inputFireStr = inputFireStr + (int)tankType;

        //血量的初始化
        phSlider.maxValue = PH;
        phSlider.value = PH;
    }

    // Update is called once per frame
    void Update()
    {
        //结合input控制器控制坦克移动
        //HorizontalUI水平方向  a d     VerticalUI 垂直方向  s w
        h_Value = Input.GetAxis(inputHorizontalStr);
        v_Value = Input.GetAxis(inputVerticalStr);

        if(v_Value!=0)
        {
            _rig.MovePosition(this.transform.position + v_Value*this.transform.forward * speed * Time.deltaTime);//Time.deltaTime:上一帧执行的时间
            //当前位置加上移动位置
        }
        if(h_Value!=0)
        {
            if(v_Value<0)
            {
                h_Value = -h_Value;
            }
            this.gameObject.transform.Rotate(Vector3.up * h_Value * rotatespeed * Time.deltaTime);
        }
运行结果及报错内容

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