diff --git a/点名器.pyw b/点名器.pyw
index 7902b4b..f89c7e3 100644
--- a/点名器.pyw
+++ b/点名器.pyw
@@ -7,8 +7,15 @@ import win32con, win32api
 import winsound
 import time
 
+filename = "./data/names.xls"
+configname = "./data/config.data"
+selname = "./assets/sel.wav"
+procname = "./assets/proc.wav"
+iconname = "./assets/点名器.ico"
 gui_size = "620x200"
 
+sound = True
+
 gui = Tk()
 
 gui.withdraw()
@@ -16,7 +23,26 @@ gui.title("点名器")
 gui.geometry(gui_size)
 gui.resizable(0,0)
 gui.configure(bg = "white")
-gui.iconbitmap("./assets/点名器.ico")
+
+try:
+    file = open(iconname)
+    file.close()
+    gui.iconbitmap(iconname)
+except IOError:
+    if not msgbox.askokcancel('资源文件错误', '在./assets目录下未能找到 点名器.ico 文件,点击「确定」将加载默认图标,点击「取消」以关闭程序'):
+        sys.exit()
+
+try:
+    file = open(selname)
+    file.close()
+    file = open(procname)
+    file.close()
+except IOError:
+    if msgbox.askokcancel('资源文件错误', '在./assets目录下未能找到音频文件,点击「确定」将关闭声音,点击「取消」以关闭程序'):
+        sound = False
+    else:
+        sys.exit()
+
 class Student(object):
     name = ""
     subject = ""
@@ -32,10 +58,6 @@ class Student(object):
 protection_override = False
 up_percent = 30
 down_persent = 40
-filename = "./data/names.xls"
-configname = "./data/config.data"
-selname = "./assets/sel.wav"
-procname = "./assets/proc.wav"
 elim_rows = 1
 percent_override = True
 
@@ -180,7 +202,8 @@ def choose():
     class_label.config(text = choice.class_name)
     subject_label.config(text = choice.subject)
     last_choice = choice.name
-    winsound.PlaySound(selname, winsound.SND_ASYNC | winsound.SND_FILENAME)
+    if sound:
+        winsound.PlaySound(selname, winsound.SND_ASYNC | winsound.SND_FILENAME)
 
 startrandom = Button(gui, text = "立刻摇人!", font = ("宋体", 17, "bold"), height = 2, fg = "red", command = choose, bg = "white")