//1.屏幕转世界坐标
Vector3Camera.main.ScreenToWorldPoint(newVector3(screenPos.x,screenPos.y,zInfo));
//2.世界转屏幕坐标
Vector3Camera.main.WorldToScreenPoint(newVector3(worldPos.x,worldPos.y,worldPos.z));
//3.世界转视口坐标
Vector3Camera.main.WorldToViewportPoint();
//4.视口转世界坐标
Vector3Camera.main.ViewportToWorldPoint(newVector3(viewPortPos.x,viewPortPos.y,zInfo));
//5.视口转屏幕坐标
Vector3Camera.main.ViewportToScreenPoint();
//6.屏幕转视口坐标
Vector3Camera.main.ScreenToViewportPoint();
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