删除clip中所有的position曲线：

 

using UnityEngine;

using System.Collections;

using UnityEditor;

public class removePositionCurves : MonoBehaviour {

    public AnimationClip m_aniClip;

    void Start () {

        EditorCurveBinding[] curveBindings= AnimationUtility.GetCurveBindings (m_aniClip);

        for (int i = 0; i < curveBindings.Length; i++) {

            EditorCurveBinding curveBinding = curveBindings [i];

            Debug.Log(curveBinding.path);

            Debug.Log (curveBinding.propertyName);

            if (curveBinding.propertyName.Contains ("m_LocalPosition")) {

                AnimationUtility.SetEditorCurve (m_aniClip, curveBinding, null); 

            }

        }

　　AssetDatabase.SaveAssets();

    }

    

}