diff --git a/点名器.pyw b/点名器.pyw
index 907f9bb..0319f2b 100644
--- a/点名器.pyw
+++ b/点名器.pyw
@@ -12,7 +12,7 @@ configname = "./data/config.data"
 selname = "./assets/sel.wav"
 procname = "./assets/proc.wav"
 iconname = "./assets/点名器.ico"
-gui_size = "620x200"
+gui_size = "650x200"
 
 sound = True
 
@@ -209,6 +209,10 @@ startrandom = Button(gui, text = "立刻摇人!", font = ("宋体", 17, "bold"),
 
 setclass = Button(gui, text = "应用班级选用", font = ("宋体", 17), height = 2, command = sel_class, bg = "white")
 
+scrool = Scrollbar(gui, command = listbox.yview)
+
+listbox.config(yscrollcommand=scrool.set)
+
 name_label = Label(gui, textvariable = cur_name, font = ("宋体", 30, "bold"), width = 20, bg = "white", fg = "blue")
 class_label = Label(gui, text = "", font = ("宋体", 15), width = 20, bg = "white")
 subject_label = Label(gui, text = "", font = ("宋体", 15), width = 20, bg = "white")
@@ -219,5 +223,6 @@ name_label.grid(row = 1, column = 1, sticky = N+S)
 listbox.grid(row = 1, column = 2, sticky = N+S)
 startrandom.grid(row = 3, column = 1, sticky = N+S+E+W)
 setclass.grid(row = 3, column = 2, sticky = N+S+E+W)
+scrool.grid(row = 1, column = 3, sticky = N+S)
 
 gui.mainloop()
\ No newline at end of file