{
 "metadata": {
  "name": "list-tuple-dict"
 },
 "nbformat": 3,
 "nbformat_minor": 0,
 "worksheets": [
  {
   "cells": [
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "# \u5217\u8868(list), \u5143\u7ec4(tuple)\u548c\u5b57\u5178(dict)\n",
      "\n",
      "## \u5217\u8868"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "a = [1, 2, 3, 4, 5, 6, 7]\n",
      "print 'a is', a\n",
      "\n",
      "print 'element in position 2 is', a[2]\n",
      "print 'the position of 3 is', a.index(3)\n",
      "print 'element in position 1~3 are', a[1:4] # half open range\n",
      "print 'element from position 2 are', a[2:]\n",
      "print 'element to last but one are', a[:-1]\n",
      "print 'elements in even position', a[::2]\n",
      "print 'elements in event position within a range', a[1:-1:2]\n",
      "\n",
      "a[0] = 0\n",
      "print 'after change element in position 0:', a\n",
      "\n",
      "a.append(2)\n",
      "print 'after append:', a\n",
      "a.extend([4, 'five'])\n",
      "print 'after extent:', a\n",
      "a.remove(2)\n",
      "print 'after remove element 2:', a\n",
      "a.pop()\n",
      "print 'after pop:', a\n",
      "print 'is 2 in a:', 2 in a\n",
      "\n",
      "del a[2]\n",
      "print 'after delete element in position 2:', a\n",
      "print 'is 2 in a:', 2 in a"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "a is [1, 2, 3, 4, 5, 6, 7]\n",
        "element in position 2 is 3\n",
        "the position of 3 is 2\n",
        "element in position 1~3 are [2, 3, 4]\n",
        "element from position 2 are [3, 4, 5, 6, 7]\n",
        "element to last but one are [1, 2, 3, 4, 5, 6]\n",
        "elements in even position [1, 3, 5, 7]\n",
        "elements in event position within a range [2, 4, 6]\n",
        "after change element in position 0: [0, 2, 3, 4, 5, 6, 7]\n",
        "after append: [0, 2, 3, 4, 5, 6, 7, 2]\n",
        "after extent: [0, 2, 3, 4, 5, 6, 7, 2, 4, 'five']\n",
        "after remove element 2: [0, 3, 4, 5, 6, 7, 2, 4, 'five']\n",
        "after pop: [0, 3, 4, 5, 6, 7, 2, 4]\n",
        "is 2 in a: True\n",
        "after delete element in position 2: [0, 3, 5, 6, 7, 2, 4]\n",
        "is 2 in a: True\n"
       ]
      }
     ],
     "prompt_number": 1
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "## \u5143\u7ec4\n",
      "\n",
      "\u5143\u7ec4\u4e0e\u5217\u8868\u7c7b\u4f3c, \u53ef\u4ee5:\n",
      "\n",
      "* \u8bbf\u95ee\u5143\u7d20(`a[2]`)\n",
      "* \u5b9a\u4f4d(`index`)\n",
      "* \u68c0\u67e5\u5143\u7d20\u5b58\u5728\u4e0e\u5426(`in`)\n",
      "* \u5207\u7247(`a[2:-1]`)\n",
      "\n",
      "\u4f46\u662f\u5143\u7ec4\u662f\u4e0d\u53ef\u4fee\u6539\u7684, \u4e0d\u53ef\u4ee5:\n",
      "\n",
      "* \u66f4\u6539\u5143\u7d20(`a[2] = 3`)\n",
      "* `append`\n",
      "* `extent`\n",
      "* `remove`\n",
      "* `pop`\n",
      "* `del`\n",
      "\n",
      "\u5143\u7ec4\u53ef\u4ee5\u4fdd\u5b58\u4e0d\u53d8\u7684\u6570\u636e, \u6bd4\u5217\u8868\u6548\u7387\u66f4\u9ad8."
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "a = (1, 2, 3, 4, 5, 6, 7)\n",
      "print 'a is', a\n",
      "print 'is 2 in a:', 2 in a\n",
      "print 'the position of 7 is:', a.index(7)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "a is (1, 2, 3, 4, 5, 6, 7)\n",
        "is 2 in a: True\n",
        "the position of 7 is: 6\n"
       ]
      }
     ],
     "prompt_number": 2
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "## \u5b57\u5178\n",
      "\n",
      "\u5b57\u5178\u63d0\u4f9b\u4e86\u4e00\u79cd\"\u952e(key)\"\u548c\"\u503c(value)\"\u4e4b\u95f4\u7684\u591a\u5bf9\u4e00\u6620\u5c04."
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "from IPython.display import Image, display\n",
      "\n",
      "d = {\n",
      "    'neta': '\u634f\u4ed6',\n",
      "    42: 'the answer to life the universe and everything'\n",
      "}\n",
      "\n",
      "print '%d is %s' % (42, d[42])\n",
      "print 'neta means %s' % d['neta'], 'not \u634f\u5979'\n",
      "display(Image(url='http://goo.gl/tVTG5'))"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "42 is the answer to life the universe and everything\n",
        "neta means \u634f\u4ed6 not \u634f\u5979\n"
       ]
      },
      {
       "html": [
        "<img src=\"http://goo.gl/tVTG5\" />"
       ],
       "output_type": "display_data",
       "text": [
        "<IPython.core.display.Image at 0x2f05bf0>"
       ]
      }
     ],
     "prompt_number": 3
    },
    {
     "cell_type": "markdown",
     "metadata": {},
     "source": [
      "\u5b57\u5178\u63d0\u4f9b\u4e0e\u5217\u8868\u7c7b\u4f3c\u7684`del`\u548c`in`\u64cd\u4f5c:"
     ]
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "d = {'foo': 'bar', 1: -1, 'bar': 'foo'}\n",
      "\n",
      "print d\n",
      "del d['foo']\n",
      "print d\n",
      "print 1 in d"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "output_type": "stream",
       "stream": "stdout",
       "text": [
        "{1: -1, 'foo': 'bar', 'bar': 'foo'}\n",
        "{1: -1, 'bar': 'foo'}\n",
        "True\n"
       ]
      }
     ],
     "prompt_number": 4
    }
   ],
   "metadata": {}
  }
 ]
}