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{
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"worksheets": [
{
"cells": [
{
"cell_type": "heading",
"level": 1,
"metadata": {},
"source": [
"Chapter 7: Programming process"
]
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 7.1, Page number: 126"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"\n",
"# Variable declaration\n",
"result = 0\n",
"i = 0\n",
"\n",
"# Calculation and result\n",
"while (i < 3) :\n",
" print ('Result: %d' % result)\n",
" operator = '+'\n",
" value = 10\n",
"\n",
" if operator == '+' :\n",
" result += value\n",
" else :\n",
" print ('Unknown operator %c' % operator)\n",
" i = i + 1 "
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Result: 0\n",
"Result: 10\n",
"Result: 20\n"
]
}
],
"prompt_number": 1
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 7.2, Page number: 133"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"# Variable declaration\n",
"result = 0\n",
"i = 0\n",
"\n",
"# Calculation and result\n",
"while (i < 3) :\n",
" print ('Result: %d' % result)\n",
" operator = '+'\n",
" value = 5\n",
"\n",
" if operator == 'q' or operator == 'Q' :\n",
" break\n",
"\n",
" if operator == '+' :\n",
" result += value\n",
"\n",
" if operator == '-' :\n",
" result -= value\n",
"\n",
" if operator == '*' :\n",
" result *= value\n",
"\n",
" if operator == '/' :\n",
" if value == 0 :\n",
" print ('Error: Divide by zero')\n",
" print ('operation ignored') \n",
" else :\n",
" result /= value\n",
"\n",
" i = i + 1"
],
"language": "python",
"metadata": {},
"outputs": [
{
"output_type": "stream",
"stream": "stdout",
"text": [
"Result: 0\n",
"Result: 5\n",
"Result: 10\n"
]
}
],
"prompt_number": 4
},
{
"cell_type": "heading",
"level": 3,
"metadata": {},
"source": [
"Example 7.3, Page number: 140"
]
},
{
"cell_type": "code",
"collapsed": false,
"input": [
"\n",
"import sys\n",
"import random\n",
"while (1) :\n",
"\n",
" # random number to be guessed\n",
" number_to_guess = random.randrange (1, 101, 1)\n",
"\n",
" # current lower limit of player's range\n",
" low_limit = 0\n",
"\n",
" # current upper limit of player's range\n",
" high_limit = 100\n",
" \n",
" # number of times player guessed\n",
" guess_count = 0\n",
"\n",
" while (1) :\n",
" \n",
" # tell user what the bounds are and get his guess\n",
" print ('Bounds %d - %d\\n' % (low_limit, high_limit))\n",
" print ('Value[%d]?' % guess_count)\n",
" \n",
" guess_count += 1\n",
"\n",
" # number gotten from the player\n",
" player_number = 50\n",
"\n",
" # did he guess right?\n",
" if (player_number == number_to_guess) :\n",
" break\n",
"\n",
" # adjust bounds for next guess\n",
" if (player_number < number_to_guess) :\n",
" low_limit = player_number\n",
" \n",
" else :\n",
" high_limit = player_number\n",
"\n",
" print ('Bingo\\n')"
],
"language": "python",
"metadata": {},
"outputs": []
}
],
"metadata": {}
}
]
}
|
