摘要:
public class Main{ public static void main(String[] args){ if(args.length < 3){ System.out.println("Usage: java Test \"n1\" \"op\" \"n2\""); System.exit(-1); } double d1 = Double.parseDouble(args[0]); double d2 = Double.parseDouble(args[2]); double d = 0; i 阅读全文