(color online) The surface local density of states (LDOS) with l = 7, correspond to the points A (a) and C (b) in Fig. 4(a). (a) There are a pair of edge states crossing the gap, which is a QSH state. (b) There is an edge state in the gap, which represents that it is a QAH state. The parameters used in panels (a) and (b) are the same as those in Figs. 4(b) and 4(d), respectively.