Based on the concept of willingness to cooperate(DWC),the paper construct the normal condition DWC model for infinite cooperating games.The aim is to study 2 problems: how the player is perception style will influence the rate of payoff and how accident environment will affect player's DWC.After studying the 2-people infinite repetition games,we find that the flexible-thinking player could acquire less DWC and rate of payoff than rigidity-thinking player;the ahead-thinking player may not get high rate of pa...