[list]
list board

[add]
add board 测试看板1
add class 测试类目1 to 测试看板1
add class 测试类目1 to 测试看板2 # 此时的异常
add event 测试事件1 to 测试看板1 / 测试类目1

[edit]
edit board 测试看板1 to 测试看板3
edit board 测试看板1 to 测试看板4

edit class 测试类目1 to 测试类目2
edit class 测试看板1 to 测试类目3
edit 

[move]
move events

[delete]
delete board

[/]
测试看板3

测试看板3/测试类目2

测试看板3