commit 90d9816ea275696e242d030a92a72d1b6f63f4ec
Author: Elex <developer@elex-project.com>
Date:   Sat Feb 25 01:48:44 2023 +0900

    2023-02-25 01:48

diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..457f44d
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,3 @@
+{
+    "python.analysis.typeCheckingMode": "basic"
+}
\ No newline at end of file
diff --git a/datatypes.py b/datatypes.py
new file mode 100755
index 0000000..e197a6c
--- /dev/null
+++ b/datatypes.py
@@ -0,0 +1,5 @@
+#!/usr/bin/python
+table = str.maketrans('aeiou', 'AEIOU')
+a = 'i like an apple'.translate(table)
+
+print(a)
diff --git a/file_io.py b/file_io.py
new file mode 100755
index 0000000..4d1bf9b
--- /dev/null
+++ b/file_io.py
@@ -0,0 +1,22 @@
+#!/usr/bin/python
+
+def read_file(file_name):
+    file = open(file_name, "r")
+    while True:
+        line = file.readline()
+        if not line:
+            break
+        print(line)
+    file.close()
+
+
+def write_file(file_name):
+    file = open(file_name, "w", encoding="UTF-8")
+    file.write("Hello,\n")
+    file.write("There")
+    file.close()
+
+
+if __name__ == "__main__":
+    read_file("./file_io.py")
+    write_file("./test.txt")
diff --git a/filewalk.py b/filewalk.py
new file mode 100755
index 0000000..db4a230
--- /dev/null
+++ b/filewalk.py
@@ -0,0 +1,18 @@
+#!/usr/bin/python
+import os
+from posixpath import dirname
+
+
+def main(rootDir):
+    for (root, dirs, files) in os.walk(rootDir):
+        print("-> " + root)
+        if len(dirs) > 0:
+            for dirName in dirs:
+                print(dirName)
+        if len(files) > 0:
+            for fileName in files:
+                print(fileName)
+
+
+if __name__ == "__main__":
+    main("/home/elex/Workspace/ELEX")
diff --git a/flow.py b/flow.py
new file mode 100755
index 0000000..c116dfa
--- /dev/null
+++ b/flow.py
@@ -0,0 +1,7 @@
+#!/usr/bin/python
+a = 10
+if (a > 0):
+    print(a)
+
+for a in reversed(range(5)):
+    print(a)
diff --git a/hello.py b/hello.py
new file mode 100755
index 0000000..7d47f22
--- /dev/null
+++ b/hello.py
@@ -0,0 +1,3 @@
+#!/usr/bin/python
+s = 'Hello, World!'
+print(s)
diff --git a/regex.py b/regex.py
new file mode 100755
index 0000000..87842f4
--- /dev/null
+++ b/regex.py
@@ -0,0 +1,59 @@
+#!/usr/bin/python
+
+import re
+
+
+def fn_match():
+    # 문자열의 전체가 정규식과 일치하는지 판별합니다.
+    # 일치할 때에는 Match 객체를, 일치하지 않으면 None을 돌려줍니다.
+    str = "bat"
+
+    pattern = re.compile("[a-z]at")
+    match = pattern.match(str)
+    if match:
+        print("Matches: ", match.group())
+    else:
+        print("Not matches.")
+
+
+def fn_search():
+    # 문자열 중에서 정규식과 일치하는 부분을 찾습니다.
+    # 일치할 때에는 Match 객체를, 일치하지 않으면 None을 돌려줍니다.
+    str = "I'm the bat man. Where is the rat?"
+
+    pattern = re.compile("[a-z]at")
+    match = pattern.search(str)
+    if match:
+        print("Matches: ", match.group())
+    else:
+        print("Not matches.")
+
+
+def fn_findall():
+    # 정규식과 일치되는 모든 문자열을 리스트로 반환합니다.
+    str = "I'm the bat man. Where is the rat?"
+
+    pattern = re.compile("[a-z]at")
+    list = pattern.findall(str)
+    print(list)
+
+
+def main():
+    fn_match()
+    fn_search()
+    fn_findall()
+
+
+def test_1():
+    line = '\tid("com.github.ben-manes.versions") version "0.42.0"'
+    pattern = re.compile(
+        'id\("com.github.ben-manes.versions"\) version "([0-9.]+)"')
+    match = pattern.search(line)
+    if match:
+        line = line.replace(match.group(1), "0.46.0")
+    print(line)
+
+
+if __name__ == "__main__":
+    # main()
+    test_1()
diff --git a/switch.py b/switch.py
new file mode 100755
index 0000000..28da48d
--- /dev/null
+++ b/switch.py
@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+def function_1():
+    return 1
+
+def function_2():
+    return 2
+
+def function_3():
+    return 3
+
+switch = {1:function_1, 2:function_2, 3:function_3}
+
+val = 2
+function = switch[val]
+result = function()
+print(result)
\ No newline at end of file
diff --git a/sys_call.py b/sys_call.py
new file mode 100755
index 0000000..35f9c3c
--- /dev/null
+++ b/sys_call.py
@@ -0,0 +1,17 @@
+#!/usr/bin/python
+import os
+import subprocess
+
+
+def fn_system():
+    os.system("ls -al")
+
+
+def fn_call():
+    result = subprocess.call(["ls", "-al"])
+    print(result)
+
+
+if __name__ == "__main__":
+    # fn_system()
+    fn_call()