add python

python_review.ipynb

@@ -0,0 +1,231 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Python Review"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Data Type\n",
+    "**Number & Boolean**"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "<class 'int'> 9\n",
+      "1.5\n",
+      "1\n",
+      "--------------------\n",
+      "<class 'bool'> False True True\n"
+     ]
+    }
+   ],
+   "source": [
+    "x = 3\n",
+    "y = 2\n",
+    "print(type(x),x**2)  #Square is **\n",
+    "print(x/y)\n",
+    "print(x//y)\n",
+    "print('-'*20)\n",
+    "t = True\n",
+    "f = False\n",
+    "print(type(t), t and f, t or f, not f)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "** String **"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "hello~world\n",
+      "hello world and digit:11 and float 0.1235\n",
+      "Hello HELLO hEllo\n",
+      "'hello_world \n",
+      "'\n",
+      "'hello_world'\n",
+      "['hello', 'world']\n"
+     ]
+    }
+   ],
+   "source": [
+    "hello = 'hello'\n",
+    "world = 'world'\n",
+    "print(hello + '~' + world)\n",
+    "print('%s %s and digit:%d and float %.4f'%(hello,world,11,0.123456))\n",
+    "print(hello.capitalize(),hello.upper(),hello.replace('e','E'))\n",
+    "\n",
+    "s = 'hello_world \\n'\n",
+    "print(\"'\"+s+\"'\")\n",
+    "print(\"'\"+s.strip()+\"'\")\n",
+    "print(s.strip().split('_'))"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "### Container\n",
+    "** List **"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[0, 1, 2, 3] [4, 3, 2, 1, 0]\n",
+      "range(0, 5) [0, 1, 2, 3, 4]\n"
+     ]
+    }
+   ],
+   "source": [
+    "xs = [0,1,2,3,4]\n",
+    "r = range(5)\n",
+    "print(xs[:-1],xs[::-1]) #[::-1] is reverse\n",
+    "print(r, list(r))\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0\n",
+      "1\n",
+      "2\n",
+      "3\n",
+      "4\n",
+      "0\n",
+      "1\n",
+      "2\n",
+      "3\n",
+      "4\n"
+     ]
+    }
+   ],
+   "source": [
+    "for i in r:\n",
+    "    print(i)\n",
+    "for i in xs:\n",
+    "    print(i)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "0 0\n",
+      "1 1\n",
+      "2 2\n",
+      "3 3\n",
+      "4 4\n"
+     ]
+    }
+   ],
+   "source": [
+    "for i,data in enumerate(r):\n",
+    "    print(i,data)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "list comprehension"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "[0, 1, 4, 9, 16]\n",
+      "[0, 4, 16]\n"
+     ]
+    }
+   ],
+   "source": [
+    "a = [x**2 for x in xs]\n",
+    "b = [x**2 for x in xs if x%2==0]\n",
+    "print(a)\n",
+    "print(b)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### Dictionary, Tuple , Function , Class\n",
+    "** Learn yourself **"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.6.4"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}