{"id":421177,"date":"2021-04-01T16:00:34","date_gmt":"2021-04-01T08:00:34","guid":{"rendered":"http:\/\/4563.org\/?p=421177"},"modified":"2021-04-01T16:00:34","modified_gmt":"2021-04-01T08:00:34","slug":"pandas-%e5%9c%a8-%e5%a4%84%e7%90%86%e5%b0%8f%e6%95%b0%e6%8d%ae%e9%87%8f%e6%97%b61000%ef%bc%8c%e9%80%9f%e5%ba%a6%e6%af%94%e5%8e%9f%e7%94%9f%e6%85%a2%e5%a5%bd%e5%a4%9a%e5%95%8a","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=421177","title":{"rendered":"pandas \u5728 \u5904\u7406\u5c0f\u6570\u636e\u91cf\u65f6(&lt;1000)\uff0c\u901f\u5ea6\u6bd4\u539f\u751f\u6162\u597d\u591a\u554a!"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  pandas \u5728 \u5904\u7406\u5c0f\u6570\u636e\u91cf\u65f6(&lt;1000)\uff0c\u901f\u5ea6\u6bd4\u539f\u751f\u6162\u597d\u591a\u554a!               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : wuwukai007 <\/span>  <span><i><\/i> 0<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<ul>\n<li>\u5982\u56fe <img decoding=\"async\" loading=\"lazy\" referrerpolicy=\"no-referrer\" rel=\"noreferrer\" src=\"http:\/\/4563.org\/wp-content\/uploads\/2021\/04\/20210402_6066d28c10e0d.png\" alt=\"pandas \u5728 \u5904\u7406\u5c0f\u6570\u636e\u91cf\u65f6(&amp;lt;1000)\uff0c\u901f\u5ea6\u6bd4\u539f\u751f\u6162\u597d\u591a\u554a!\" \/><\/li>\n<\/ul><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>7<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"5613769\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : chenbojian <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u90fd\u5c0f\u6570\u636e\u91cf\u4e86\uff0c\u4e0d\u9700\u8981\u5728\u610f\u901f\u5ea6\u4e86\u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613770\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : czfy <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u6bd5\u7adf\u662f\u5c01\u88c5\u7684<br \/>\u590d\u6742\u7edf\u8ba1\u6a21\u578b\u4e5f\u4e0d\u80fd\u5168\u90e8\u90fd\u624b\u5199\u5427                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613771\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : xiaolinjia <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u4e0a\u6b21\u6211\u6d4b\u8bd5\u7684\u65f6\u5019\uff0c\u53d1\u73b0<br \/>n1 = np.arange(cnt, dtype=np.int_)<br \/>n2 = list(range(cnt))<br \/>n1 + 2<br \/>[mem + 2 for mem in n2]<br \/>\u5f53 cnt \u8f83\u5c0f\u7684\u65f6\u5019\uff0cnumpy \u7684\u5e7f\u64ad\u65b9\u5f0f\u6bd4\u4e0b\u9762 py \u539f\u751f\u5faa\u73af\u8fd8\u6162\u3002\u4e4b\u524d\u770b\u6587\u6863\u8bf4\uff0cnumpy \u7528\u7684 c \u5faa\u73af\uff0c\u6240\u4ee5\u6bd4 py \u7684\u5feb\u3002\u628a\u6211\u6574\u7684\u6709\u70b9\u61f5\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613772\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : liprais <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u4f60\u8fd9\u5bf9\u6bd4\u7684\u90fd\u4e0d\u662f\u4e00\u4ef6\u4e8b\u597d\u4e48                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613773\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : LeeReamond <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @xiaolinjia <br \/>https:\/\/gist.github.com\/GoodManWEN\/dc9372c7a0288837aa4ffd4b0ddc85f8 <button onclick=\"lazyGist(this)\">\u00a0\u663e\u793a Gist \u4ee3\u7801\u00a0<\/button> <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613774\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : xiaolinjia <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @LeeReamond \u884c\u5427\uff0c\u5177\u4f53\u9608\u503c\u6211\u6ca1\u6d4b\u6e05\u9664\uff0c\u4e0d\u8fc7 cnt \u5728 15 \u4ee5\u5185 py \u7684\u5217\u8868\u63a8\u5bfc\u5feb\u8fc7 np \u5e7f\u64ad\u3002                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"5613775\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : LeeReamond <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @xiaolinjia \u6d4b\u4e86\u4e00\u4e0b\u786e\u5b9e\uff0c\u6211\u7684\u9608\u503c\u5927\u6982\u957f\u5ea6 25 \u5de6\u53f3\u65f6\u901f\u5ea6\u76f8\u7b49\u3002<\/p>\n<p>\u7406\u8bba\u4e0a np \u7684\u4e3b\u8981\u5f00\u9500\u5728\u4e8e ffi\uff0c\u4e0d\u540c\u7684\u4f18\u5316\u7a0b\u5ea6 ffi \u8c03\u7528\u5f00\u9500\u5728\u51e0\u5341\u5230\u51e0\u767e\u7eb3\u79d2\u4e0d\u7b49\u3002C \u8bed\u8a00\u8fdb\u884c\u8fd9\u4e48\u77ed\u7684\u8ba1\u7b97\u7684\u5f00\u9500\u53ef\u4ee5\u8ba4\u4e3a\u4e0d\u5b58\u5728\uff0ccache \u4e0d\u4f1a miss\uff0c\u5927\u6982\u51e0\u4e2a clock \u4e4b\u5185\u641e\u5b9a\uff0c\u53ef\u80fd\u4e2a\u4f4d\u6570\u7eb3\u79d2\uff0c\u6216\u8005 1 \u7eb3\u79d2\u3002<\/p>\n<p>\u539f\u751f\u7684\u8bdd\uff0c\u4e3b\u8981\u5728\u4e8e\u65b0\u5efa\u548c\u56de\u6536\u5217\u8868\u7684\u5f00\u9500\uff0c\u56e0\u4e3a\u8fd9\u90e8\u5206\u5df2\u7ecf\u9ad8\u5ea6\u4f18\u5316\u4e86\uff0ccache \u4e0d miss \u7684\u60c5\u51b5\u4e0b\u53ef\u80fd\u51e0\u5341\u7eb3\u79d2\uff0c\u5faa\u73af\u8fc7\u7a0b\u7684\u5f00\u9500\u4e5f\u6bd4\u8f83\u9ad8\uff0c\u53ef\u80fd\u51e0\u5341\u7eb3\u79d2\uff0c\u52a0\u5728\u4e00\u8d77\u5f97\u5230\u4e00\u4e2a\u5408\u8ba1\u7684\u9608\u503c\u3002\u4e0d\u8fc7\u53ef\u4ee5\u770b\u51fa\u6765 py \u8ffd\u6c42\u6027\u80fd\u8fd8\u662f\u9887\u62c9\u80ef\u7684\uff0c\u968f\u7740\u5217\u8868\u957f\u5ea6\u589e\u957f\u4f1a\u6709\u660e\u663e\u7684\u5f00\u9500\u589e\u957f\uff0cc \u7684\u8bdd\u53ef\u80fd\u4f60\u957f\u5ea6\u4e3a 1 \u548c\u957f\u5ea6\u4e3a 1000 \u611f\u53d7\u4e0d\u5230\u4ec0\u4e48\u533a\u522b\u3002                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>pandas \u5728 \u5904\u7406\u5c0f\u6570\u636e\u91cf\u65f6(&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/421177"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=421177"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/421177\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=421177"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=421177"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=421177"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}