fix(guide): simplify directory structure

guide/english/python/ord-function/index.md

@@ -0,0 +1,39 @@
+---
+title: Python Ord Function
+---
+
+## Ord function
+
+`ord()` is a built-in function in Python 3, to convert the string representing one Unicode character into integer 
+representing the Unicode code of the character.
+
+#### Examples:
+```
+>>> ord('d')
+100
+>>> ord('1')
+49
+```
+
+## chr function
+
+`chr()` is a built-in function in Python 3, to convert the integer 
+representing the Unicode code into a string representing a corresponding character.
+
+#### Examples:
+```
+>>> chr(49)
+'1'
+```
+One thing is to be noted that, if the integer value passed to `chr()` is out of range then, a ValueError will be raised.
+```
+>>> chr(-10)
+'Traceback (most recent call last):
+  File "<pyshell#24>", line 1, in <module>
+    chr(-1)
+ValueError: chr() arg not in range(0x110000)'
+```
+
+
+
+