//用count<=3这些不行吗?
public class Test4 {
public static void main(String[] args) {
int count =1;
boolean isOk = false;
do {
System.out.println("正在进行第" + count + "次练习");
if(count >=3) {
isOk = true;
}
count ++;
}while(!isOk);
}
}