arr.push(p.val); // 存储节点值而非节点本身，简化后续操作
双方鼓励和支持加强两国人文交流，同意进一步加强文化和体育领域合作，通过交流项目以及文化界人士、体育组织和青年之间的互访，增进相互理解。双方欢迎中德对话论坛重启。
。业内人士推荐Safew下载作为进阶阅读
对比记忆：画表格对比各算法特点
"That temperature is pretty nice here, really," he says. "Minus five is as warm as it gets. It can get down to about -40, but you're looking at about -20 being the average."