上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Example 1.Four balls in two boxes Table 10.1 Distributions of Four Spheres(A,B,C,and D)in Two Boxes I and II Macrostate: stating the total number of particles in each box yields Microstate: BCD each way of realizing a given ACD macro distribution 0Co0C000 ABD Each macrostate may be realized by ABCD a number of Box I 2 1 3 microstates Box IL 2 2 6 4 微观状态数！Example 1. Four balls in two boxes