{"id":553,"date":"2020-12-22T01:12:47","date_gmt":"2020-12-21T17:12:47","guid":{"rendered":"http:\/\/www.mimiq.com.cn\/?p=553"},"modified":"2020-12-22T01:13:59","modified_gmt":"2020-12-21T17:13:59","slug":"deepops%e7%9a%84python%e5%b0%8f%e7%ac%94%e8%ae%b0-%e5%a4%a9%e6%b1%a0%e9%be%99%e7%8f%a0%e8%ae%a1%e5%88%92-python%e8%ae%ad%e7%bb%83%e8%90%a5-task-02day4","status":"publish","type":"post","link":"http:\/\/www.mimiq.com.cn\/?p=553","title":{"rendered":"DeepOps\u7684Python\u5c0f\u7b14\u8bb0-\u5929\u6c60\u9f99\u73e0\u8ba1\u5212-Python\u8bad\u7ec3\u8425-Task 02:DAY4"},"content":{"rendered":"\n<p>\u8fdb\u884c\u5230\u4e86\u8bad\u7ec3\u8425\u7684\u7b2c\u56db\u5929\uff0c\u8fdb\u5165\u4e86\u4e0b\u4e00\u4e2a\u73af\u8282Task2\uff0cTask2\u8fd8\u662fpython\u7684\u57fa\u7840\u5185\u5bb9\uff0c\u4e3b\u8981\u5305\u62ec\uff1a<\/p>\n\n\n\n<ol><li>\u5217\u8868<\/li><li>\u5143\u7ec4<\/li><li>\u5b57\u7b26\u4e32<\/li><li>\u5b57\u5178<\/li><li>\u96c6\u5408<\/li><li>\u5e8f\u5217<br>DAY 4 \u7684\u5b66\u4e60\u5185\u5bb9\uff1a\u5217\u8868\u3001\u5143\u7ec4<\/li><\/ol>\n\n\n\n<h2>1 \u5217\u8868<\/h2>\n\n\n\n<h2>1.1 \u5217\u8868\u7684\u5b9a\u4e49<\/h2>\n\n\n\n<p>\u4e2d\u62ec\u53f7\u5305\u56f4\uff0c\u9017\u53f7\u5206\u5272<\/p>\n\n\n\n<h2>1.2 \u5217\u8868\u7684\u521b\u5efa<\/h2>\n\n\n\n<p>\u76f4\u63a5\u521b\u5efa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']<\/code><\/pre>\n\n\n\n<p>\u5229\u7528range()\u521b\u5efa<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = list(range(10))\nx = list(range(1, 11, 2))\nx = list(range(10, 1, -2))<\/code><\/pre>\n\n\n\n<p>\u5229\u7528\u63a8\u5bfc\u5f0f\u521b\u5efa\u5217\u8868<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;0] * 5\nx = &#91;0 for i in range(5)]\nx = &#91;i ** 2 for i in range(1, 10)]\nx = &#91;i for i in range(100) if (i % 2) != 0 and (i % 3) == 0]<\/code><\/pre>\n\n\n\n<p>\u521b\u5efa\u4e00\u4e2a\u6df7\u5408\u5217\u8868<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mix = &#91;1, 'lsgo', 3.14, &#91;1, 2, 3]]<\/code><\/pre>\n\n\n\n<p>\u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>empty = &#91;]<\/code><\/pre>\n\n\n\n<h2>1.3 \u5411\u5217\u8868\u4e2d\u6dfb\u52a0\u5143\u7d20<\/h2>\n\n\n\n<p>list.append(obj) \u5728\u5217\u8868\u672b\u5c3e\u6dfb\u52a0\u65b0\u7684\u5bf9\u8c61\uff0c<strong>\u7279\u522b\u6ce8\u610fappend\u548cextend\u7684\u533a\u522b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\nx.append(&#91;'Thursday', 'Sunday'])\nprint(x)  \n# &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', &#91;'Thursday', 'Sunday']] \nprint(len(x))  # 6<\/code><\/pre>\n\n\n\n<p>list.extend(seq) \u5728\u5217\u8868\u672b\u5c3e\u4e00\u6b21\u6027\u8ffd\u52a0\u53e6\u4e00\u4e2a\u5e8f\u5217\u4e2d\u7684\u591a\u4e2a\u503c\uff08\u7528\u65b0\u5217\u8868\u6269\u5c55\u539f\u6765\u7684\u5217\u8868\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\nx.extend(&#91;'Thursday', 'Sunday'])\nprint(x)  \n# &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Thursday', 'Sunday']<\/code><\/pre>\n\n\n\n<p>list.insert(index, obj) \u5728\u7f16\u53f7 index \u4f4d\u7f6e\u63d2\u5165 obj\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\nx.insert(2, 'Sunday')\nprint(x)\n# &#91;'Monday', 'Tuesday', 'Sunday', 'Wednesday', 'Thursday', 'Friday']\n\nprint(len(x))  # 6<\/code><\/pre>\n\n\n\n<h2>1.4 \u5220\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/h2>\n\n\n\n<p>list.remove(obj) \u79fb\u9664\u5217\u8868\u4e2d\u67d0\u4e2a\u503c\u7684\u7b2c\u4e00\u4e2a\u5339\u914d\u9879<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\nx.remove('Monday')\nprint(x)  # &#91;'Tuesday', 'Wednesday', 'Thursday', 'Friday']<\/code><\/pre>\n\n\n\n<p>list.pop([index=-1]) \u79fb\u9664\u5217\u8868\u4e2d\u7684\u4e00\u4e2a\u5143\u7d20\uff08\u9ed8\u8ba4\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff09\uff0c\u5e76\u4e14\u8fd4\u56de\u8be5\u5143\u7d20\u7684\u503c<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\ny = x.pop()\nprint(y)  # Friday\n\ny = x.pop(0)\nprint(y)  # Monday\n\ny = x.pop(-2)\nprint(y)  # Wednesday\nprint(x)  # &#91;'Tuesday', 'Thursday']<\/code><\/pre>\n\n\n\n<p>\u76f4\u63a5\u4f7f\u7528\u5e8f\u53f7\u53bb\u6307\u5b9a\u5220\u9664\uff0cdel x[0:2]\uff0c<strong>python\u7684\u5207\u7247\u8fd8\u662f\u975e\u5e38\u597d\u7528\uff0c\u60f3\u600e\u4e48\u5207\u5c31\u600e\u4e48\u5207\u3002<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\ndel x&#91;0:2]\nprint(x)  # &#91;'Wednesday', 'Thursday', 'Friday']<\/code><\/pre>\n\n\n\n<h2>1.5 \u83b7\u53d6\u5217\u8868\u4e2d\u7684\u5143\u7d20<\/h2>\n\n\n\n<p>\u5207\u7247\u7684\u901a\u7528\u5199\u6cd5\u662f start : stop : step<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\n# \u60c5\u51b5 1 - \"start :\"\nprint(x&#91;3:])  # &#91;'Thursday', 'Friday']\nprint(x&#91;-3:])  # &#91;'Wednesday', 'Thursday', 'Friday']\n# \u60c5\u51b5 2 - \": stop\"\nprint(week&#91;:3])  # &#91;'Monday', 'Tuesday', 'Wednesday']\nprint(week&#91;:-3])  # &#91;'Monday', 'Tuesday']\n# \u60c5\u51b5 3 - \"start : stop\"\nprint(week&#91;1:3])  # &#91;'Tuesday', 'Wednesday']\nprint(week&#91;-3:-1])  # &#91;'Wednesday', 'Thursday']\n# \u60c5\u51b5 4 - \"start : stop : step\"\nprint(week&#91;1:4:2])  # &#91;'Tuesday', 'Thursday']\nprint(week&#91;:4:2])  # &#91;'Monday', 'Wednesday']\nprint(week&#91;1::2])  # &#91;'Tuesday', 'Thursday']\nprint(week&#91;::-1])  \n# \u60c5\u51b5 5 - \" : \"\u590d\u5236\u5217\u8868\u4e2d\u7684\u6240\u6709\u5143\u7d20\uff08\u6d45\u62f7\u8d1d\uff09\u3002\nweek = &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']\nprint(week&#91;:])  \n# &#91;'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday']<\/code><\/pre>\n\n\n\n<p><strong>\u6d45\u62f7\u8d1d\u4e0e\u6df1\u62f7\u8d1d<\/strong>&nbsp;\u6d45\u62f7\u8d1d\u590d\u5236\u5143\u7d20\uff0c\u4e0d\u590d\u5236\u5f15\u7528\uff0c\u6df1\u62f7\u8d1d\u590d\u5236\u5f15\u7528\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>list1 = &#91;123, 456, 789, 213]\nlist2 = list1\nlist3 = list1&#91;:]\n\nprint(list2)  # &#91;123, 456, 789, 213]\nprint(list3)  # &#91;123, 456, 789, 213]\nlist1.sort()\nprint(list2)  # &#91;123, 213, 456, 789] \nprint(list3)  # &#91;123, 456, 789, 213]\n\n#list1 \u8bb0\u5f55\u7684\u662f\u5f15\u7528\uff0c\u6df1\u6d45\u62f7\u8d1d\u8fc7\u53bb\u7684\u90fd\u662f\u5f15\u7528\uff0c\u4fee\u6539\u76f8\u540c\u5f15\u7528\u56e0\u6b64\u6570\u636e\u90fd\u53d1\u751f\u53d8\u5316\nlist1 = &#91;&#91;123, 456], &#91;789, 213]] \nlist2 = list1\nlist3 = list1&#91;:]\nprint(list2)  # &#91;&#91;123, 456], &#91;789, 213]]\nprint(list3)  # &#91;&#91;123, 456], &#91;789, 213]]\nlist1&#91;0]&#91;0] = 111\nprint(list2)  # &#91;&#91;111, 456], &#91;789, 213]]\nprint(list3)  # &#91;&#91;111, 456], &#91;789, 213]]<\/code><\/pre>\n\n\n\n<h2>1.6 \u5217\u8868\u7684\u5e38\u7528\u64cd\u4f5c\u7b26<\/h2>\n\n\n\n<p>\u7b49\u53f7\u64cd\u4f5c\u7b26\uff1a==<br>\u8fde\u63a5\u64cd\u4f5c\u7b26 +<br>\u91cd\u590d\u64cd\u4f5c\u7b26 *<br>\u6210\u5458\u5173\u7cfb\u64cd\u4f5c\u7b26 in\u3001not in<br>\u300c\u7b49\u53f7 ==\u300d\uff0c\u53ea\u6709\u6210\u5458\u3001\u6210\u5458\u4f4d\u7f6e\u90fd\u76f8\u540c\u65f6\u624d\u8fd4\u56deTrue\u3002<\/p>\n\n\n\n<p>\u5217\u8868\u62fc\u63a5\u6709\u4e24\u79cd\u65b9\u5f0f\uff0c\u7528\u300c\u52a0\u53f7 +\u300d\u548c\u300c\u4e58\u53f7 *\u300d\uff0c\u524d\u8005\u9996\u5c3e\u62fc\u63a5\uff0c\u540e\u8005\u590d\u5236\u62fc\u63a5\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>list1 = &#91;123, 456]\nlist2 = &#91;456, 123]\nlist3 = &#91;123, 456]\n\nprint(list1 == list2)  # False\nprint(list1 == list3)  # True\n\nlist4 = list1 + list2  # \u7b49\u540cextend()\nprint(list4)  # &#91;123, 456, 456, 123]\n\nlist5 = list3 * 3\nprint(list5)  # &#91;123, 456, 123, 456, 123, 456]\n\nlist3 *= 3\nprint(list3)  # &#91;123, 456, 123, 456, 123, 456]\n\nprint(123 in list3)  # True\nprint(456 not in list3)  # False<\/code><\/pre>\n\n\n\n<h2>1.7 \u5217\u8868\u7684\u5176\u4ed6\u65b9\u6cd5<\/h2>\n\n\n\n<p>list.count(obj) \u7edf\u8ba1\u67d0\u4e2a\u5143\u7d20\u5728\u5217\u8868\u4e2d\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>list1 = &#91;123, 456] * 3\nprint(list1)  # &#91;123, 456, 123, 456, 123, 456]\nnum = list1.count(123)\nprint(num)  # 3<\/code><\/pre>\n\n\n\n<p>list.index(x[, start[, end]]) \u4ece\u5217\u8868\u4e2d\u627e\u51fa\u67d0\u4e2a\u503c\u7b2c\u4e00\u4e2a\u5339\u914d\u9879\u7684\u7d22\u5f15\u4f4d\u7f6e<br>list.reverse() \u53cd\u5411\u5217\u8868\u4e2d\u5143\u7d20<br>list.sort(key=None, reverse=False) \u5bf9\u539f\u5217\u8868\u8fdb\u884c\u6392\u5e8f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = &#91;123, 456, 789, 213]\nx.sort()\nprint(x)\n# &#91;123, 213, 456, 789]\n\nx.sort(reverse=True)\nprint(x)\n# &#91;789, 456, 213, 123]\n\n\n# \u83b7\u53d6\u5217\u8868\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20\ndef takeSecond(elem):\n    return elem&#91;1]\n\nx = &#91;(2, 2), (3, 4), (4, 1), (1, 3)]\nx.sort(key=takeSecond)\nprint(x)\n# &#91;(4, 1), (2, 2), (1, 3), (3, 4)]\n\nx.sort(key=lambda a: a&#91;0])\nprint(x)\n# &#91;(1, 3), (2, 2), (3, 4), (4, 1)]<\/code><\/pre>\n\n\n\n<h2>2 \u5143\u7ec4<\/h2>\n\n\n\n<p>\u300c\u5143\u7ec4\u300d\u5b9a\u4e49\u8bed\u6cd5\u4e3a\uff1a(\u5143\u7d201, \u5143\u7d202, \u2026, \u5143\u7d20n)<br>\u5c0f\u62ec\u53f7\u628a\u6240\u6709\u5143\u7d20\u7ed1\u5728\u4e00\u8d77<br>\u9017\u53f7\u5c06\u6bcf\u4e2a\u5143\u7d20\u4e00\u4e00\u5206\u5f00<\/p>\n\n\n\n<h2>2.1 \u521b\u5efa\u548c\u8bbf\u95ee\u4e00\u4e2a\u5143\u7ec4<\/h2>\n\n\n\n<p>Python \u7684\u5143\u7ec4\u4e0e\u5217\u8868\u7c7b\u4f3c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8etuple\uff08\u5143\u7ec4\uff09\u88ab\u521b\u5efa\u540e\u5c31\u4e0d\u80fd\u5bf9\u5176\u8fdb\u884c\u4fee\u6539\uff0c\u7c7b\u4f3c\u5b57\u7b26\u4e32\u3002<br>\u5143\u7ec4\u4f7f\u7528\u5c0f\u62ec\u53f7\uff0c\u5217\u8868\u4f7f\u7528\u65b9\u62ec\u53f7\u3002<br>\u5143\u7ec4\u4e0e\u5217\u8868\u7c7b\u4f3c\uff0c\u4e5f\u7528\u6574\u6570\u6765\u5bf9\u5b83\u8fdb\u884c\u7d22\u5f15 (indexing) \u548c\u5207\u7247 (slicing)\u3002<br>\u521b\u5efa\u5143\u7ec4\u53ef\u4ee5\u7528\u5c0f\u62ec\u53f7 ()\uff0c\u4e5f\u53ef\u4ee5\u4ec0\u4e48\u90fd\u4e0d\u7528\uff0c\u4e3a\u4e86\u53ef\u8bfb\u6027\uff0c\u5efa\u8bae\u8fd8\u662f\u7528 ()\u3002<br><strong>\u5143\u7ec4\u4e2d\u53ea\u5305\u542b\u4e00\u4e2a\u5143\u7d20\u65f6\uff0c\u9700\u8981\u5728\u5143\u7d20\u540e\u9762\u6dfb\u52a0\u9017\u53f7\uff0c\u5426\u5219\u62ec\u53f7\u4f1a\u88ab\u5f53\u4f5c\u8fd0\u7b97\u7b26\u4f7f\u7528\u3002<\/strong><br>\u521b\u5efa\u4e8c\u7ef4\u5143\u7ec4<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>x = (1, 10.31, 'python'), ('data', 11)\nprint(x)<\/code><\/pre>\n\n\n\n<h2>2.2 \u66f4\u65b0\u548c\u5220\u9664\u4e00\u4e2a\u5143\u7ec4<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>t1 = (1, 2, 3, &#91;4, 5, 6])\nprint(t1)  # (1, 2, 3, &#91;4, 5, 6])\n\nt1&#91;3]&#91;0] = 9\nt1&#91;1] = 9 #**\u4f1a\u62a5\u9519\u4e0d\u53ef\u4fee\u6539**\nprint(t1)  # (1, 2, 3, &#91;9, 5, 6])<\/code><\/pre>\n\n\n\n<h2>2.3 \u5143\u7ec4\u76f8\u5173\u7684\u64cd\u4f5c\u7b26<\/h2>\n\n\n\n<p>\u7b49\u53f7\u64cd\u4f5c\u7b26\uff1a==<br>\u8fde\u63a5\u64cd\u4f5c\u7b26 +<br>\u91cd\u590d\u64cd\u4f5c\u7b26 *<br>\u6210\u5458\u5173\u7cfb\u64cd\u4f5c\u7b26 in\u3001not in<br>\u300c\u7b49\u53f7 ==\u300d\uff0c\u53ea\u6709\u6210\u5458\u3001\u6210\u5458\u4f4d\u7f6e\u90fd\u76f8\u540c\u65f6\u624d\u8fd4\u56deTrue\u3002<\/p>\n\n\n\n<p>\u5143\u7ec4\u62fc\u63a5\u6709\u4e24\u79cd\u65b9\u5f0f\uff0c\u7528\u300c\u52a0\u53f7 +\u300d\u548c\u300c\u4e58\u53f7 *\u300d\uff0c\u524d\u8005\u9996\u5c3e\u62fc\u63a5\uff0c\u540e\u8005\u590d\u5236\u62fc\u63a5\u3002<\/p>\n\n\n\n<p>\u3010\u4f8b\u5b50\u3011<\/p>\n\n\n\n<h2>2.4 \u5185\u7f6e\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u5143\u7ec4\u5927\u5c0f\u548c\u5185\u5bb9\u90fd\u4e0d\u53ef\u66f4\u6539\uff0c\u56e0\u6b64\u53ea\u6709 count \u548c index \u4e24\u79cd\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h2>2.5 \u89e3\u538b\u5143\u7ec4<\/h2>\n\n\n\n<p>\u89e3\u538b\uff08unpack\uff09\u4e00\u7ef4\u5143\u7ec4\uff08\u6709\u51e0\u4e2a\u5143\u7d20\u5de6\u8fb9\u62ec\u53f7\u5b9a\u4e49\u51e0\u4e2a\u53d8\u91cf\uff09<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># \u89e3\u538b\uff08unpack\uff09\u4e00\u7ef4\u5143\u7ec4\nt = (1, 10.31, 'python')\n(a, b, c) = t\nprint(a, b, c)\n# 1 10.31 python\n\n#\u4f8b\u5b50\u3011\u89e3\u538b\u4e8c\u7ef4\u5143\u7ec4\nt = (1, 10.31, ('OK', 'python'))\n(a, b, (c, d)) = t\nprint(a, b, c, d)\n# 1 10.31 OK python<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u8fdb\u884c\u5230\u4e86\u8bad\u7ec3\u8425\u7684\u7b2c\u56db\u5929\uff0c\u8fdb\u5165\u4e86\u4e0b\u4e00\u4e2a\u73af\u8282Task2\uff0cTask2\u8fd8\u662fpython\u7684\u57fa\u7840\u5185\u5bb9\uff0c\u4e3b\u8981\u5305\u62ec\uff1a \u5217\u8868 \u5143\u7ec4 \u5b57\u7b26\u4e32 \u5b57\u5178 \u96c6\u5408 \u5e8f\u5217DAY 4 \u7684\u5b66\u4e60\u5185\u5bb9\uff1a\u5217\u8868\u3001\u5143\u7ec4 1 \u5217\u8868 1.1 \u5217\u8868\u7684\u5b9a\u4e49 \u4e2d\u62ec\u53f7\u5305\u56f4\uff0c\u9017\u53f7\u5206\u5272 1.2 \u5217\u8868\u7684\u521b\u5efa \u76f4\u63a5\u521b\u5efa \u5229\u7528range()\u521b\u5efa \u5229\u7528\u63a8\u5bfc\u5f0f\u521b\u5efa\u5217\u8868 \u521b\u5efa\u4e00\u4e2a\u6df7\u5408\u5217\u8868 \u521b\u5efa\u4e00\u4e2a\u7a7a\u5217\u8868 1.3 \u5411\u5217\u8868\u4e2d\u6dfb\u52a0\u5143\u7d20 list.append(obj) \u5728\u5217\u8868\u672b\u5c3e\u6dfb\u52a0\u65b0\u7684\u5bf9\u8c61\uff0c\u7279\u522b\u6ce8\u610fappend\u548cextend\u7684\u533a\u522b list.extend(seq) \u5728\u5217\u8868\u672b\u5c3e\u4e00\u6b21\u6027\u8ffd\u52a0\u53e6\u4e00\u4e2a\u5e8f\u5217\u4e2d\u7684\u591a\u4e2a\u503c\uff08\u7528\u65b0\u5217\u8868\u6269\u5c55\u539f\u6765\u7684\u5217\u8868\uff09 list.insert(index, obj) \u5728\u7f16\u53f7 index \u4f4d\u7f6e\u63d2\u5165 obj\u3002 1.4 \u5220\u9664\u5217\u8868\u4e2d\u7684\u5143\u7d20 list.remove(obj) \u79fb\u9664\u5217\u8868\u4e2d\u67d0\u4e2a\u503c\u7684\u7b2c\u4e00\u4e2a\u5339\u914d\u9879 list.pop([index=-1]) \u79fb\u9664\u5217\u8868\u4e2d\u7684\u4e00\u4e2a\u5143\u7d20\uff08\u9ed8\u8ba4\u6700\u540e\u4e00\u4e2a\u5143\u7d20\uff09\uff0c\u5e76\u4e14\u8fd4\u56de\u8be5\u5143\u7d20\u7684\u503c \u76f4\u63a5\u4f7f\u7528\u5e8f\u53f7\u53bb\u6307\u5b9a\u5220\u9664\uff0cdel x[0:2]\uff0cpython\u7684\u5207\u7247\u8fd8\u662f\u975e\u5e38\u597d\u7528\uff0c\u60f3\u600e\u4e48\u5207\u5c31\u600e\u4e48\u5207\u3002 1.5 \u83b7\u53d6\u5217\u8868\u4e2d\u7684\u5143\u7d20 \u5207\u7247\u7684\u901a\u7528\u5199\u6cd5\u662f start : stop : step \u6d45\u62f7\u8d1d\u4e0e\u6df1\u62f7\u8d1d&nbsp;\u6d45\u62f7\u8d1d\u590d\u5236\u5143\u7d20\uff0c\u4e0d\u590d\u5236\u5f15\u7528\uff0c\u6df1\u62f7\u8d1d\u590d\u5236\u5f15\u7528\u3002 1.6 \u5217\u8868\u7684\u5e38\u7528\u64cd\u4f5c\u7b26 \u7b49\u53f7\u64cd\u4f5c\u7b26\uff1a==\u8fde\u63a5\u64cd\u4f5c\u7b26 +\u91cd\u590d\u64cd\u4f5c\u7b26 *\u6210\u5458\u5173\u7cfb\u64cd\u4f5c\u7b26 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.mimiq.com.cn\/?p=553\"> <span class=\"screen-reader-text\">DeepOps\u7684Python\u5c0f\u7b14\u8bb0-\u5929\u6c60\u9f99\u73e0\u8ba1\u5212-Python\u8bad\u7ec3\u8425-Task 02:DAY4<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[25],"tags":[],"_links":{"self":[{"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/553"}],"collection":[{"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=553"}],"version-history":[{"count":1,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/553\/revisions"}],"predecessor-version":[{"id":554,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/553\/revisions\/554"}],"wp:attachment":[{"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=553"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.mimiq.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=553"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}