public static void main(String[] args) {
// 定义输入
Scanner scanner = new Scanner(System.in);
System.out.println("请输入数字，我们会找出里面的最小值和最大值，用空格隔开，{输入-1结束} =.=！");
double num1 = scanner.nextDouble();
// 定义变量最大数和最小数
double max = num1;
double min = num1;
while (num1 != -1) {
if (num1 > max) {
max = num1;
} else if (num1 < min) {
min = num1;
}
// System.out.println("请输入下一个数：");
num1 = scanner.nextDouble();
}
System.out.println("最大值为：" + max + "最小值为：" + min);
scanner.close();
}