What were the Peiping model, Suiyuan model and Tianjin model in the War of Liberation?

Peiping method: force the enemy to use peaceful methods and reorganize into the People's Liberation Army quickly and thoroughly according to the system of the People's Liberation Army. Suiyuan way: make temporary concessions to this part of the enemy, so as to win this part of the army to stand on our side politically or remain neutral, so that we can concentrate on solving the main part of the remnants of the Kuomintang first, and then reorganize this part of the army into the People's Liberation Army according to the system of the People's Liberation Army after a considerable period of time. Tianjin Way: Fight to solve the enemy.