0_0_34553540_14444\Main.java:2: 错误: 需要class, interface或enum
public static void main(String[]args){
^
0_0_34553540_14444\Main.java:4: 错误: 需要class, interface或enum
while (sc.hasNext()){
^
0_0_34553540_14444\Main.java:6: 错误: 需要class, interface或enum
if(n<0)
^
0_0_34553540_14444\Main.java:8: 错误: 需要class, interface或enum
System.out.println(String.format("%.2f", n));
^
0_0_34553540_14444\Main.java:9: 错误: 需要class, interface或enum
}
^
5 个错误
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