random_practice.ipynb

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     "text": [
      "0.8474337369372327\n",
      "0.763774618976614\n"
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   "source": [
    "#產生偽隨機亂數pseudo-random number\n",
    "import random as rd\n",
    "\n",
    "n1=rd.random()                             # Random float:  0.0 <= x < 1.0\n",
    "print (n1)\n",
    "\n",
    "n2=rd.random()\n",
    "print (n2)"
   ]
  },
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     "text": [
      "0.5289353829404123\n",
      "0.5289353829404123\n"
     ]
    }
   ],
   "source": [
    "#使用亂數種子固定亂數狀態\n",
    "import random as rd\n",
    "\n",
    "random.seed(34)\n",
    "n3=rd.random()                             # Random float:  0.0 <= x < 1.0\n",
    "print (n3)\n",
    "\n",
    "random.seed(34)\n",
    "n4=rd.random()\n",
    "print (n4)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
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     "text": [
      "12\n",
      "46\n"
     ]
    }
   ],
   "source": [
    "#取得整數亂數\n",
    "import random as rd\n",
    "\n",
    "n5=rd.randrange(17)                        # Integer from 0 to 9 inclusive\n",
    "print (n5)\n",
    "\n",
    "# range(start, stop, step)\n",
    "n6=rd.randrange(0, 101, 2)                 # Even integer from 0 to 100 inclusive\n",
    "print (n6)"
   ]
  },
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   "cell_type": "code",
   "execution_count": 13,
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   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "win\n"
     ]
    }
   ],
   "source": [
    "#從某個資料結構挑出一個元素\n",
    "import random as rd\n",
    "\n",
    "my_list=['win', 'lose', 'draw']\n",
    "print( rd.choice(my_list) )"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {
    "ExecuteTime": {
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   },
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "['Beautiful', 'is', 'better', 'than', 'ugly']\n",
      "['ugly', 'Beautiful', 'is', 'better', 'than']\n"
     ]
    }
   ],
   "source": [
    "# Shuffle a list\n",
    "\n",
    "import random as rd\n",
    "\n",
    "my_list2='Beautiful is better than ugly'.split()\n",
    "print(my_list2)\n",
    "rd.shuffle(my_list2)\n",
    "print(my_list2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "sample([10, 20, 30, 40, 50], k=4)"
   ]
  }
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