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String s = "";
do{
Scanner scan=new Scanner(System.in);
s =scan.next();
System.out.println("s is "+s);
} while(!"y".equalsIgnoreCase(s))
改进下ls代码
public static void main(String[] args){
Scanner scan=new Scanner(System.in);
String s=scan.next();
while(!s.equals("Y") && !s.equals("y")){
System.out.println("s is "+s);
s=scan.next();
}
}