This article,through detailed analysis of "living on" and close comparison between it and "afterlife",intends to,firstly,show that "living on",though coming from "afterlife",is,rather than its copy,its living on,which implies a kind of discontinuous continuity that is different from the discont.

This article,through detailed analysis of "living on" and close comparison between it and "afterlife",intends to show that "living on",though coming from "afterlife",is,rather than its copy,its living on.

Through detailed analysis of the concept of living on and close comparison between the concept with "afterlife," this paper intends to, firstly, show that "living on," though coming from "afterlife," is, rather than its copy, its living on, which implies a kind of discontinuous continuity that is different from the discontinuity of "afterlife," then put f.

The uniform persistence of a predator-prey system with diffusion and yime delay;

Persistence and Extinction of Logistic Single-Species with Pollution and Harvesting;

Persistence and Periodic Solution for the Predator-Prey System with Impulse and Type Ⅲ Functional Response;

Permanence and Stability in a Predator-Prey System with Stage Structure and Delays;

Extinction and Permanence of a Predator prey System with Impulsive Effect;

Permanence of a Non-autonomous Stage Structured Competitive System;

Based on summarizing the status quo of researches on exist status,a conclusion has been drawn that there are three aspects at least in this field,which are network information update,lifecycle and accessibility.