插入一个上标:Ctrl+H
插入一个下标:Ctrl+L
Right arrow with upper text slot (Ctrl+T,Shift+Right) , 输入条件推理
Right arrow with lower text slot (Ctrl+T,CtrlAlt+Right) 输入条件推理
Right arrow with upper and lower text slots (Ctrl+T,Right) 输入条件推理
Curly brackets 大括号{
Left-pointing angle brackets 向左的尖括号<
Right-pointing angle bracket from Symbol style (Ctrl+Shift+K,>)
Left white square bracket from Extra Math style (Ctrl+Shift+K,[)
左白方括号
Right white square bracket from Extra Math style (Ctrl+Shift+K,])
