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public static void main(String[] args) {
Room room204 = new Room();
网页链接 +=55;
网页链接 += 200;
System.out.println(noom204.electricity);
System.out.println(room204.number);
System.out.println("===============:
Room room201 = new Room();
网页链接 += 40 ;
网页链接 += 100;
System.out.println(room201.number);
System.out.println(room201.electricity);
System.out.println("======================");
Room room207 = new Room();
System.out.println(poom207.electricity);
System.out.printLn(room207.number);