{"id":111490,"date":"2020-05-21T21:04:31","date_gmt":"2020-05-21T13:04:31","guid":{"rendered":"http:\/\/4563.org\/?p=111490"},"modified":"2020-05-21T21:04:31","modified_gmt":"2020-05-21T13:04:31","slug":"numpy-%e4%b8%ad%e7%9a%84%e4%b8%80%e7%bb%b4%e6%95%b0%e7%bb%84%e4%b8%8d%e5%90%8c%e8%a1%a8%e7%a4%ba%e6%b3%95%e7%9a%84%e5%90%ab%e4%b9%89%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=111490","title":{"rendered":"numpy \u4e2d\u7684\u4e00\u7ef4\u6570\u7ec4\u4e0d\u540c\u8868\u793a\u6cd5\u7684\u542b\u4e49\uff1f"},"content":{"rendered":"
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numpy \u4e2d\u7684\u4e00\u7ef4\u6570\u7ec4\u4e0d\u540c\u8868\u793a\u6cd5\u7684\u542b\u4e49\uff1f <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : Weixiao0725 <\/span> <\/i> 57<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u5728 numpy \u4e2d\u521b\u5efa\u4e00\u7ef4\u6570\u7ec4\u6709\u4e24\u79cd\u5f62\u5f0f:<\/p>\n

    \n
  • a = np.array([1,2,3])<\/li>\n
  • b = np.array([[1,2,3]])<\/li>\n<\/ul>\n

    \u4f46\u662f a.shape<\/strong> \u8f93\u51fa (3,) b.shape<\/strong> \u8f93\u51fa (1,3)<\/p>\n

    \u8fd9\u4e24\u79cd\u8868\u793a\u6cd5\u6709\u4ec0\u4e48\u4e0d\u540c\u5417\uff1f<\/p>\n<\/p><\/div>\n

    \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (4<\/span>) <\/div>\n
    <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
      \n
    • \n
      \n
      \n
      \u8cc7\u6df1\u5927\u4f6c : 14cheese <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      \u7b2c\u4e8c\u79cd\u660e\u663e\u4e0d\u662f\u4e00\u7ef4 <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
      \u8cc7\u6df1\u5927\u4f6c : ipwx <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      \u7b2c\u4e8c\u79cd\u662f\u4e8c\u7ef4\u6570\u7ec4\u5927\u54e5\uff0c\u5b83 shape \u90fd\u544a\u8bc9\u4f60\u4e86 <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
      \u8cc7\u6df1\u5927\u4f6c : si <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      \u4e00\u5c42[]\u5c31\u662f\u4e00\u7ef4\uff0c\u4e24\u5c42[]\u4e24\u7ef4\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n
      \n
      \n
      \u4e3b<\/span> \u8cc7\u6df1\u5927\u4f6c : Weixiao0725 <\/span> <\/div>\n
      <\/i> <\/span> <\/div>\n<\/p><\/div>\n
      @ipwx \u4f20\u7edf\u610f\u4e49\u4e0a\u4e24\u4e2a\u77e9\u9635\u76f8\u4e58\u7684\u8bdd\u9700\u8981 b * matrix \u5427\uff08\u5047\u8bbe matrix \u662f 3×2 \u5f62\u5f0f\uff09\u6700\u540e\u662f\u4e00\u4e2a 1×2 \u7684\u77e9\u9635\uff0c\u4f46\u662f\u5728 numpy \u4e2d a * matrix \u4e5f\u53ef\u4ee5\uff0c\u4e0d\u8fc7\u6700\u540e\u5f97\u5230\u4e5f\u662f\u4e00\u7ef4\u7684\u3002 <\/div>\n<\/p><\/div>\n<\/li>\n
    • \n","protected":false},"excerpt":{"rendered":"

      numpy \u4e2d\u7684\u4e00\u7ef4\u6570\u7ec4\u4e0d\u540c\u8868\u793a\u6cd5…<\/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\/111490"}],"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=111490"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/111490\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=111490"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=111490"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=111490"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}