本文主要总结实现角色移动的解决方案。
1. 创建脚本：PlayerController
2. 创建游戏角色Player，在Player下挂载PlayerController脚本
3. 把Camera挂载到Player的子物体中，调整视角，以实现相机跟随效果
3. PlayerController脚本代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class PlayerController : MonoBehaviour
{public float speed = 5.0f;// Start is called before the first frame updatevoid Start(){Transform transform = GetComponent<Transform>();}// Update is called once per framevoid Update(){      Move();}private void Move(){float horizontalInput = Input.GetAxis("Horizontal");float verticalInput = Input.GetAxis("Vertical");Vector3 moveingVec = new Vector3(horizontalInput, 0f, verticalInput) * Time.deltaTime * speed;transform.Translate(moveingVec);}    
}