插入 break 语句。
public static void main(String[] args){
switch ( args.length ){
case 0:
System.out.println("No parameters");
break ;
case 1:
System.out.println("Only one parameter: args[0]");
break ;
default :
System.out.println("Parameters: ");
for ( int i = 0, n = args.length; i < n; i ++){
System.out.println(args[i]);
}
break ;
}
}
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