题目

crypto/easy_caesar/encrypt.py

@@ -0,0 +1,19 @@
+with open("plain_text.txt") as f:
+    plain = f.readline()
+    
+
+def caesar_encrypt(text, shift = 3):
+    encrypted_text = ""
+    for char in text:
+        if char.isalpha():
+            ascii_offset = ord('A') if char.isupper() else ord('a')
+            encrypted_char = chr((ord(char) - ascii_offset + shift) % 26 + ascii_offset)
+            encrypted_text += encrypted_char
+        else:
+            encrypted_text += char
+    return encrypted_text
+
+cipher = caesar_encrypt(plain)
+
+with open("cipher_text.txt","w") as f:
+    f.write(cipher)