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using System.Collections;using System.Collections.Generic;using UnityEngine;public class player : MonoBehaviour{
       public GameObject PrintPrefab;    // Use this for initialization    void Start()    {
       }    // Update is called once per frame    void Update()    {
           //Debug.Log(Camera.main.ScreenToWorldPoint(Input.mousePosition)+new Vector3(0,0,10));        Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition) + new Vector3(0, 0, 10);        transform.position = mousePos;        if (Input.GetMouseButton(0))        {
               Instantiate(PrintPrefab, transform.position, transform.rotation);        }    }}

代码解析：

Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition) + new Vector3(0, 0, 10);

2.物体跟随鼠标移动

transform.position = mousePos;

3.创建预制体

if (Input.GetMouseButton(0)) {
                             Instantiate(PrintPrefab, transform.position, transform.rotation);}

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