{"id":932287,"date":"2024-12-26T17:55:07","date_gmt":"2024-12-26T09:55:07","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/932287.html"},"modified":"2024-12-26T17:55:08","modified_gmt":"2024-12-26T09:55:08","slug":"python%e5%a6%82%e4%bd%95%e5%ae%89%e8%a3%85nltk","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/932287.html","title":{"rendered":"python\u5982\u4f55\u5b89\u88c5nltk"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25070202\/386dbe34-0595-4e30-8be5-029883f37cf4.webp\" alt=\"python\u5982\u4f55\u5b89\u88c5nltk\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u5b89\u88c5NLTK\u9700\u8981\u4f7f\u7528Python\u5305\u7ba1\u7406\u5de5\u5177pip\uff0c\u901a\u8fc7\u547d\u4ee4\u884c\u6267\u884c\u547d\u4ee4<code>pip install nltk<\/code>\u53ef\u4ee5\u5feb\u901f\u5b8c\u6210\u5b89\u88c5\u3002\u6b64\u5916\uff0c\u786e\u4fdd\u4f60\u7684Python\u73af\u5883\u548cpip\u7248\u672c\u662f\u6700\u65b0\u7684\uff0c\u4ee5\u907f\u514d\u6f5c\u5728\u7684\u517c\u5bb9\u6027\u95ee\u9898\u3002<\/strong> \u4e0b\u9762\u5c06\u8be6\u7ec6\u4ecb\u7ecdNLTK\u7684\u5b89\u88c5\u8fc7\u7a0b\u548c\u53ef\u80fd\u9047\u5230\u7684\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u4e00\u3001\u51c6\u5907\u5de5\u4f5c<\/p>\n<\/p>\n<p><p>\u5728\u5b89\u88c5NLTK\u4e4b\u524d\uff0c\u786e\u4fdd\u4f60\u7684\u8ba1\u7b97\u673a\u4e0a\u5df2\u7ecf\u5b89\u88c5\u4e86Python\u3002\u5982\u679c\u6ca1\u6709\u5b89\u88c5\uff0c\u53ef\u4ee5\u4ecePython\u5b98\u65b9\u7f51\u7ad9\uff08<a href=\"https:\/\/www.python.org\/\">python.org<\/a>\uff09\u4e0b\u8f7d\u5e76\u5b89\u88c5\u6700\u65b0\u7248\u672c\u3002\u5b89\u88c5Python\u65f6\uff0c\u5efa\u8bae\u52fe\u9009\u201cAdd Python to PATH\u201d\u9009\u9879\uff0c\u8fd9\u5c06\u4f7f\u4f60\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u76f4\u63a5\u4f7f\u7528Python\u547d\u4ee4\u3002<\/p>\n<\/p>\n<p><p>\u4e8c\u3001\u5b89\u88c5NLTK<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u4f7f\u7528pip\u5b89\u88c5<\/strong><\/p>\n<\/p>\n<p><p>\u6253\u5f00\u547d\u4ee4\u884c\u754c\u9762\uff08Windows\u7528\u6237\u53ef\u4ee5\u4f7f\u7528cmd\u6216PowerShell\uff0cmacOS\u548cLinux\u7528\u6237\u53ef\u4ee5\u4f7f\u7528\u7ec8\u7aef\uff09\uff0c\u7136\u540e\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install nltk<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6b64\u547d\u4ee4\u5c06\u4ecePython Package Index (PyPI) \u4e0b\u8f7d\u5e76\u5b89\u88c5NLTK\u5e93\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u9a8c\u8bc1\u5b89\u88c5<\/strong><\/p>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u5728Python\u73af\u5883\u4e2d\u5bfc\u5165NLTK\u6765\u9a8c\u8bc1\u5b89\u88c5\u662f\u5426\u6210\u529f\u3002\u6253\u5f00Python\u89e3\u91ca\u5668\u5e76\u8f93\u5165\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import nltk<\/p>\n<p>print(nltk.__version__)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5982\u679c\u6ca1\u6709\u9519\u8bef\u4fe1\u606f\u51fa\u73b0\uff0c\u5e76\u4e14\u663e\u793aNLTK\u7684\u7248\u672c\u53f7\uff0c\u8bf4\u660e\u5b89\u88c5\u6210\u529f\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e09\u3001\u4e0b\u8f7dNLTK\u6570\u636e<\/p>\n<\/p>\n<p><p>NLTK\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u96c6\u548c\u6a21\u578b\uff0c\u8fd9\u4e9b\u8d44\u6e90\u9700\u8981\u5355\u72ec\u4e0b\u8f7d\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528NLTK\u63d0\u4f9b\u7684\u4e0b\u8f7d\u5668\u6765\u83b7\u53d6\u8fd9\u4e9b\u8d44\u6e90\uff1a<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u542f\u52a8NLTK\u4e0b\u8f7d\u5668<\/strong><\/p>\n<\/p>\n<p><p>\u5728Python\u73af\u5883\u4e2d\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import nltk<\/p>\n<p>nltk.download()<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u5c06\u542f\u52a8\u4e00\u4e2a\u56fe\u5f62\u5316\u754c\u9762\uff0c\u4f60\u53ef\u4ee5\u5728\u5176\u4e2d\u9009\u62e9\u8981\u4e0b\u8f7d\u7684\u6570\u636e\u96c6\u548c\u6a21\u578b\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4e0b\u8f7d\u5e38\u7528\u6570\u636e\u96c6<\/strong><\/p>\n<\/p>\n<p><p>\u5982\u679c\u4f60\u53ea\u9700\u8981\u4e0b\u8f7d\u5e38\u7528\u7684\u6570\u636e\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">nltk.download(&#39;all&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u5c06\u4e0b\u8f7dNLTK\u6240\u6709\u53ef\u7528\u7684\u8d44\u6e90\uff0c\u5f53\u7136\u4f60\u4e5f\u53ef\u4ee5\u9009\u62e9\u53ea\u4e0b\u8f7d\u7279\u5b9a\u7684\u6570\u636e\u96c6\uff0c\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">nltk.download(&#39;punkt&#39;)<\/p>\n<p>nltk.download(&#39;wordnet&#39;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u4e9b\u662fNLTK\u4e2d\u6700\u5e38\u7528\u7684\u5206\u8bcd\u5668\u548c\u8bcd\u6c47\u6570\u636e\u5e93\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u56db\u3001\u5904\u7406\u5b89\u88c5\u95ee\u9898<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u66f4\u65b0pip<\/strong><\/p>\n<\/p>\n<p><p>\u5982\u679c\u5728\u5b89\u88c5\u8fc7\u7a0b\u4e2d\u9047\u5230\u95ee\u9898\uff0c\u53ef\u80fd\u9700\u8981\u66f4\u65b0pip\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u66f4\u65b0pip\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">python -m pip install --upgrade pip<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5904\u7406\u7f51\u7edc\u95ee\u9898<\/strong><\/p>\n<\/p>\n<p><p>\u5982\u679c\u4e0b\u8f7dNLTK\u6570\u636e\u65f6\u9047\u5230\u7f51\u7edc\u95ee\u9898\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u4f7f\u7528\u955c\u50cf\u6e90\u3002\u66f4\u6539pip\u6e90\u4e3a\u56fd\u5185\u955c\u50cf\uff08\u5982\u963f\u91cc\u4e91\u6216\u6e05\u534e\u5927\u5b66\uff09\u53ef\u4ee5\u52a0\u901f\u4e0b\u8f7d\u8fc7\u7a0b\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-bash\">pip install -i https:\/\/mirrors.aliyun.com\/pypi\/simple\/ nltk<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u68c0\u67e5Python\u7248\u672c<\/strong><\/p>\n<\/p>\n<p><p>\u786e\u4fdd\u4f60\u4f7f\u7528\u7684Python\u7248\u672c\u4e0eNLTK\u517c\u5bb9\u3002NLTK\u901a\u5e38\u652f\u6301Python 3.x\u7248\u672c\uff0c\u5177\u4f53\u7684\u517c\u5bb9\u6027\u4fe1\u606f\u53ef\u4ee5\u5728NLTK\u7684\u5b98\u65b9\u6587\u6863\u4e2d\u627e\u5230\u3002<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u4e94\u3001NLTK\u7684\u57fa\u672c\u5e94\u7528<\/p>\n<\/p>\n<p><p>\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u4f60\u53ef\u4ee5\u5f00\u59cb\u4f7f\u7528NLTK\u8fdb\u884c\u81ea\u7136\u8bed\u8a00\u5904\u7406\u4efb\u52a1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u5e94\u7528\uff1a<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u6587\u672c\u5206\u8bcd<\/strong><\/p>\n<\/p>\n<p><p>NLTK\u63d0\u4f9b\u4e86\u591a\u79cd\u5206\u8bcd\u5668\uff0c\u53ef\u4ee5\u7528\u4e8e\u5c06\u6587\u672c\u5206\u6210\u53e5\u5b50\u6216\u8bcd\u8bed\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from nltk.tokenize import word_tokenize<\/p>\n<p>sentence = &quot;Hello, world! This is an example sentence.&quot;<\/p>\n<p>tokens = word_tokenize(sentence)<\/p>\n<p>print(tokens)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u8bcd\u6027\u6807\u6ce8<\/strong><\/p>\n<\/p>\n<p><p>\u8bcd\u6027\u6807\u6ce8\u662f\u81ea\u7136\u8bed\u8a00\u5904\u7406\u4e2d\u7684\u57fa\u672c\u4efb\u52a1\u4e4b\u4e00\uff0cNLTK\u63d0\u4f9b\u4e86\u9884\u8bad\u7ec3\u7684\u8bcd\u6027\u6807\u6ce8\u5668\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from nltk import pos_tag<\/p>\n<p>tokens = word_tokenize(sentence)<\/p>\n<p>tagged = pos_tag(tokens)<\/p>\n<p>print(tagged)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u8bed\u6cd5\u89e3\u6790<\/strong><\/p>\n<\/p>\n<p><p>NLTK\u652f\u6301\u591a\u79cd\u89e3\u6790\u5668\uff0c\u53ef\u4ee5\u7528\u4e8e\u5206\u6790\u53e5\u5b50\u7684\u8bed\u6cd5\u7ed3\u6784\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from nltk import CFG<\/p>\n<p>grammar = CFG.fromstring(&quot;&quot;&quot;<\/p>\n<p>    S -&gt; NP VP<\/p>\n<p>    VP -&gt; V NP | V NP PP<\/p>\n<p>    PP -&gt; P NP<\/p>\n<p>    V -&gt; &quot;saw&quot; | &quot;ate&quot; | &quot;walked&quot;<\/p>\n<p>    NP -&gt; &quot;John&quot; | &quot;Mary&quot; | &quot;Bob&quot; | Det N | Det N PP<\/p>\n<p>    Det -&gt; &quot;a&quot; | &quot;an&quot; | &quot;the&quot; | &quot;my&quot;<\/p>\n<p>    N -&gt; &quot;man&quot; | &quot;dog&quot; | &quot;cat&quot; | &quot;telescope&quot; | &quot;park&quot;<\/p>\n<p>    P -&gt; &quot;in&quot; | &quot;on&quot; | &quot;by&quot; | &quot;with&quot;<\/p>\n<p>&quot;&quot;&quot;)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<\/li>\n<\/ol>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u4f60\u53ef\u4ee5\u6210\u529f\u5b89\u88c5\u548c\u4f7f\u7528NLTK\u8fdb\u884c\u81ea\u7136\u8bed\u8a00\u5904\u7406\u4efb\u52a1\u3002NLTK\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u9002\u5408\u521d\u5b66\u8005\u548c\u7814\u7a76\u4eba\u5458\u4f7f\u7528\u3002\u4f60\u53ef\u4ee5\u67e5\u9605\u5b98\u65b9\u6587\u6863\u548c\u793e\u533a\u8d44\u6e90\uff0c\u83b7\u53d6\u66f4\u591a\u5173\u4e8eNLTK\u7684\u4f7f\u7528\u6280\u5de7\u548c\u793a\u4f8b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Windows\u4e0a\u5b89\u88c5NLTK\uff1f<\/strong><br \/>\u5728Windows\u7cfb\u7edf\u4e0a\uff0c\u5b89\u88c5NLTK\u975e\u5e38\u7b80\u5355\u3002\u9996\u5148\u786e\u4fdd\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86Python\u548cpip\u3002\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\uff0c\u8f93\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<code>pip install nltk<\/code>\u3002\u5b89\u88c5\u5b8c\u6210\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7Python\u4ea4\u4e92\u73af\u5883\u6216\u5728\u4f60\u7684\u4ee3\u7801\u4e2d\u5bfc\u5165NLTK\u6765\u9a8c\u8bc1\u5b89\u88c5\u662f\u5426\u6210\u529f\u3002<\/p>\n<p><strong>\u5b89\u88c5NLTK\u65f6\u9047\u5230\u9519\u8bef\u600e\u4e48\u529e\uff1f<\/strong><br \/>\u5982\u679c\u5728\u5b89\u88c5NLTK\u65f6\u51fa\u73b0\u9519\u8bef\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u7f51\u7edc\u95ee\u9898\u6216\u6743\u9650\u4e0d\u8db3\u3002\u5efa\u8bae\u68c0\u67e5\u7f51\u7edc\u8fde\u63a5\uff0c\u5e76\u5c1d\u8bd5\u4ee5\u7ba1\u7406\u5458\u8eab\u4efd\u8fd0\u884c\u547d\u4ee4\u63d0\u793a\u7b26\u3002\u5982\u679c\u95ee\u9898\u4ecd\u7136\u5b58\u5728\uff0c\u53ef\u4ee5\u8003\u8651\u5347\u7ea7pip\uff0c\u4f7f\u7528\u547d\u4ee4<code>pip install --upgrade pip<\/code>\uff0c\u7136\u540e\u518d\u5c1d\u8bd5\u5b89\u88c5NLTK\u3002<\/p>\n<p><strong>\u5b89\u88c5NLTK\u540e\u5982\u4f55\u4e0b\u8f7d\u6240\u9700\u7684\u8bed\u6599\u5e93\u548c\u6a21\u578b\uff1f<\/strong><br \/>\u5b89\u88c5\u5b8c\u6210NLTK\u540e\uff0c\u4f60\u9700\u8981\u4e0b\u8f7d\u6240\u9700\u7684\u8bed\u6599\u5e93\u548c\u6a21\u578b\u3002\u6253\u5f00Python\u4ea4\u4e92\u73af\u5883\uff0c\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\uff1a  <\/p>\n<pre><code class=\"language-python\">import nltk\nnltk.download()\n<\/code><\/pre>\n<p>\u8fd9\u4f1a\u6253\u5f00\u4e00\u4e2a\u56fe\u5f62\u754c\u9762\uff0c\u5141\u8bb8\u4f60\u9009\u62e9\u9700\u8981\u4e0b\u8f7d\u7684\u8d44\u6e90\u3002\u4f60\u4e5f\u53ef\u4ee5\u5728\u547d\u4ee4\u884c\u4e2d\u4f7f\u7528<code>nltk.download(&#39;all&#39;)<\/code>\u6765\u4e0b\u8f7d\u6240\u6709\u7684\u8bed\u6599\u5e93\u548c\u6a21\u578b\uff0c\u6216\u8005\u4f7f\u7528<code>nltk.download(&#39;specific_resource&#39;)<\/code>\u6765\u4e0b\u8f7d\u7279\u5b9a\u7684\u8d44\u6e90\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u5b89\u88c5NLTK\u9700\u8981\u4f7f\u7528Python\u5305\u7ba1\u7406\u5de5\u5177pip\uff0c\u901a\u8fc7\u547d\u4ee4\u884c\u6267\u884c\u547d\u4ee4pip install n [&hellip;]","protected":false},"author":3,"featured_media":932289,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/932287"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=932287"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/932287\/revisions"}],"predecessor-version":[{"id":932291,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/932287\/revisions\/932291"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/932289"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=932287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=932287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=932287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}