摘要：
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 6 namespace State 7 { 8 class Work 9 { 10 private State state; 11 public Work() 12 { 13 this.state = new ForenoonState(); 14 } 15 16 ... 阅读全文
