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{
"metadata": {
"name": "ch1"
},
"nbformat": 3,
"nbformat_minor": 0,
"worksheets": [
{
"cells": [
{
"cell_type": "code",
"collapsed": false,
"input": "\"\"\"\nExample 1.1\n\"\"\"\nprint \"Hello, World!\\n\"\n",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Hello, World!\n\n"
}
],
"prompt_number": 1
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nexample 1.2\nprints 'hello world' with comments.\n'''\n\n# prints \"Hello, World!\":\nprint \"Hello, World!\\n\"",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Hello, World!\n\n"
}
],
"prompt_number": 2
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nexample 1.3\nanother version of hello world.\n'''\n\n# prints \"Hello, World!\":\nprint \"Hel\" + \"lo, Wo\" + \"rld!\" \n\n",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Hello, World!\n"
}
],
"prompt_number": 3
},
{
"cell_type": "code",
"collapsed": false,
"input": "\"\"\"\nexample 1.4\nanother version of hello world.\n\"\"\"\n\n# prints \"Hello, World!\":\nprint \"Hello, W\" + 'o' + \"rld\" + '!' ",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Hello, World!\n"
}
],
"prompt_number": 4
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.5 Inserting Numeric Literals into the Standard Output Stream\n'''\n\n# prints \"The Millennium ends Dec 31 2000.\":\nprint \"The Millennium ends Dec %d %d \" %(31,2000)",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "The Millennium ends Dec 31 2000 \n"
}
],
"prompt_number": 5
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.6 Using Integer Variables\nIn this example, the integer 44 is assigned to the variable m, and the value of the expression m + 33\nis assigned to the variable n:\n'''\n# prints \"m = 44 and n = 77\":\n\nm = 44 # assigns the value 44 to the variable m\nprint \"m = %d \" % m,\nn = m + 33 # assigns the value 77 to the variable n\nprint \"and n = %d \" % n",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "m = 44 and n = 77 \n"
}
],
"prompt_number": 6
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.7 A Program's Tokens\n'''\n\n# prints \"n = 44:\nn=44\nprint \"n = %d\" % n",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "n = 44\n"
}
],
"prompt_number": 7
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.8 \n'''\n\n# Python does not have semicolons so wont give any errors.\nn=44\nprint \"n = %d\" % n ",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "n = 44\n"
}
],
"prompt_number": 8
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.9 Initializing Variables\nThis program contains one variable that is not initialized and one that is initialized.\nNote : This program would give you differ output then c gives.\n'''\n\n# prints \"m = ?? and n = 44\":\nm = 0 #In python we do not have declaration of variables, we just initialize it and use it.\nn=44\nprint \"m = %d and n = %d\" %(m,n)",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "m = 0 and n = 44\n"
}
],
"prompt_number": 9
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.10 The const Specifier\nThis program illustrates constant definitions:\n'''\n\n# defines constants; has no output:\nBEEP = '\\b'\nMAXINT = 2147483647\nN = MAXINT/2\nKM_PER_MI = 1.60934\nPI = 3.14159265358979323846\n",
"language": "python",
"metadata": {},
"outputs": [],
"prompt_number": 10
},
{
"cell_type": "code",
"collapsed": false,
"input": "'''\nEXAMPLE 1.11 Using the Input Operator\n'''\n\n# tests the input of integers, floats, and characters:\nprint \"Enter two integers: \"\nm = int(raw_input())\nn = int(raw_input())\nprint \"m = %d , n = %d \" %(m,n)\n\nprint \"Enter three decimal numbers: \"\nx = float(raw_input())\ny = float(raw_input())\nz = float(raw_input())\n\nprint \"x = %f , y = %f , z = %f\" %(x,y,z)\n\nprint \"Enter four characters: \";\nc1 = raw_input()\nc2 = raw_input()\nc3 = raw_input()\nc4 = raw_input()\nprint \"c1 = \" + c1 + \", c2 = \" + c2 + \", c3 = \" + c3 + \", c4 = \" + c4 ",
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": "Enter two integers: \n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "22\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "44\n"
},
{
"output_type": "stream",
"stream": "stdout",
"text": "m = 22 , n = 44 \nEnter three decimal numbers: \n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "2.2\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "4.4\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "6.6\n"
},
{
"output_type": "stream",
"stream": "stdout",
"text": "x = 2.200000 , y = 4.400000 , z = 6.600000\nEnter four characters: \n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "A\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "B\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "C\n"
},
{
"name": "stdout",
"output_type": "stream",
"stream": "stdout",
"text": "D\n"
},
{
"output_type": "stream",
"stream": "stdout",
"text": "c1 = A, c2 = B, c3 = C, c4 = D\n"
}
],
"prompt_number": 11
},
{
"cell_type": "code",
"collapsed": false,
"input": "",
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
|
