for test .md
#123
##456
###789
强调 关键字
- 小点
*小点
数据结构
树
二叉树
平衡二叉树
满二叉树
public static void (String[]){
}
void main(){
}
public class InnerClass{
private int out = 10;
private void test(){
int result = new Inner().in;
System.out.println(result);
}
private class Inner{
private int in = out;
}
public static void main (String[] args) {
InnerClass innerClass = new InnerClass();
innerClass.test();
}
}