/tickingarea: 添加、移除或列出常加载区域，即使附近没有玩家也会持续运行。
语法
<尖括号> 内为必填，[方括号] 内为可选。 /tickingarea 有 8 种写法：
/tickingarea <mode: tickingareamodeadd> <from: position> <to: position> [name: id] [preload: boolean]
/tickingarea <mode: tickingareamodeadd> <circle: addtickingareatype> <center: position> <radius: int> [name: id] [preload: boolean]
/tickingarea <mode: tickingareamoderemove> <position: position>
/tickingarea <mode: tickingareamoderemove> <name: id>
/tickingarea <mode: tickingareamoderemoveall>
/tickingarea <mode: tickingareamodelist> [all-dimensions: alldimensions]
/tickingarea <mode: tickingareamodepreload> <position: position> [preload: boolean]
/tickingarea <mode: tickingareamodepreload> <name: id> [preload: boolean]