摘要： String str="abcdefghigklmnopqrstuvwxyzABCDEFGHIGKLMNOPQRSTUVWXYZ0123456789"; Random r=new Random(); String arr[]=new String [4]; String b=""; for(int 阅读全文

摘要： Random r = new Random(); int[] a ={1,2,3,4,5,6}; int c = 0; while (true) { for(int i = 0;i<a.length;i++) { int b = r.nextInt(36); a[i]=b+1; } for(int 阅读全文