| force | The force to add to the Y component of the velocity in the world space of the Rigidbody2D. |
| mode | 用于施加指定力的方法。 |
Adds a force to the Y component of the velocity only leaving the X component of the world space velocity untouched.
Additional resources: Rigidbody2D.AddForceX and Rigidbody2D.AddForce.