编辑代码

using System,collection;
using System collection generic;
using unityengine;

public class runninganimation:monobehaviour
{
    public transform TF;//引用组件
    public rigidbody2D rb;

    private int MC;
    public float jumpspeed;

    void start()
    {
        //无
    }
    void update()
    {
        MC=input.getaxisraw("horizontal")//系统代码
        rb.velocity=new vector2(MC * movespeed,xxx.velocity.y)
        
        if(input.getbuttondowm("jump"))//跳跃
        rb.velocity=new vector2(rb.velocity.x,jumpspeed)

    }
}