0_0_32571160_30111\Main.java:1: 错误: 需要class, interface或enum
public static void main(String[] args) {
^
0_0_32571160_30111\Main.java:3: 错误: 需要class, interface或enum
float r = 0;
^
0_0_32571160_30111\Main.java:4: 错误: 需要class, interface或enum
System.out.println("请输入x1:");
^
0_0_32571160_30111\Main.java:5: 错误: 需要class, interface或enum
int x1= sc.nextInt();
^
0_0_32571160_30111\Main.java:6: 错误: 需要class, interface或enum
System.out.println("请输入x2:");
^
0_0_32571160_30111\Main.java:7: 错误: 需要class, interface或enum
int x2= sc.nextInt();
^
0_0_32571160_30111\Main.java:8: 错误: 需要class, interface或enum
System.out.println("请输入y1:");
^
0_0_32571160_30111\Main.java:9: 错误: 需要class, interface或enum
int y1= sc.nextInt();
^
0_0_32571160_30111\Main.java:10: 错误: 需要class, interface或enum
System.out.println("请输入y2:");
^
0_0_32571160_30111\Main.java:11: 错误: 需要class, interface或enum
int y2= sc.nextInt();
^
0_0_32571160_30111\Main.java:12: 错误: 需要class, interface或enum
r=(float) Math.sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
^
0_0_32571160_30111\Main.java:16: 错误: 需要class, interface或enum
System.out.println(String.format("%.2f",r)); //String.format("%.2f",r) 保留两位小数
^
0_0_32571160_30111\Main.java:17: 错误: 需要class, interface或enum
}
^
13 个错误
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