diff --git a/diy4.py b/diy4.py
new file mode 100644
index 0000000..97aacad
--- /dev/null
+++ b/diy4.py
@@ -0,0 +1,19 @@
+import random
+
+# 私钥
+key = "abctvefqegh使ec用er编程crq实cre-cqee现位移替换rv4ta加密，制作密码evtq机关真pq,j[4vm,cq是太好玩evtewq3了哈哈！"
+# 要加密语句q4
+message = "一起去看动漫展吧！诺依，周末"
+key_message="" 
+# 请使用私钥key，对message进行加密
+for i in range(len(message)):
+    a=message[i]
+    b=random.choice(key)
+    c=random.choice(key)
+    d=a+b+c
+    key_message=key_message+d
+print(key_message)
+message1=list(key_message)
+message1.insert(random.randint(0,len(message1)),"￥%……&*$%gll-=63= ,6_*409t0bm[twq((%$^#(*!!!!+_)(*&^%!@#$%^&*()_+_)(*&^%$!#^%!$@#%$%^**!*$&$^!()!)^ERSEYSDCJFFU%R$^#592t8707c488 929n5439)(*&$#@^^$$$@@%^@))]ovkpmp04jivy5jv[.5ev0y35y2;-3;svc=-t2=.c.554=86902]c;5^&%(%^")
+message2="".join(message1)
+print(message2)
\ No newline at end of file
diff --git "a/\343\200\202py" "b/\343\200\202py"
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ "b/\343\200\202py"