{"id":184928,"date":"2023-08-10T13:16:42","date_gmt":"2023-08-10T05:16:42","guid":{"rendered":"http:\/\/www.idc.net\/help\/184928\/"},"modified":"2023-08-10T13:16:42","modified_gmt":"2023-08-10T05:16:42","slug":"%e5%90%8e%e6%b5%aa%e4%ba%91%e5%b0%8f%e7%a8%8b%e5%ba%8f%e6%95%99%e7%a8%8b%ef%bc%9asdk%e6%95%b0%e6%8d%ae%e5%ba%93-command%c2%b7%e6%9f%a5%e8%af%a2%c2%b7%e9%80%bb%e8%be%91%e6%93%8d%e4%bd%9c%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/idc.net\/help\/184928\/","title":{"rendered":"\u540e\u6d6a\u4e91\u5c0f\u7a0b\u5e8f\u6559\u7a0b\uff1aSDK\u6570\u636e\u5e93 Command\u00b7\u67e5\u8be2\u00b7\u903b\u8f91\u64cd\u4f5c\u7b26"},"content":{"rendered":"

Command.and(expressions: any[]): Command<\/h2>\n

\n \u652f\u6301\u7aef\uff1a\u5c0f\u7a0b\u5e8f , \u4e91\u51fd\u6570 , Web\n<\/p><\/blockquote>\n

\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u4e0e\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6<\/p>\n

\u53c2\u6570<\/h2>\n

expressions: any[]<\/h3>\n

\u8fd4\u56de\u503c<\/h2>\n

Command<\/h3>\n

\u4f7f\u7528\u8bf4\u660e<\/h2>\n

and \u6709\u4e24\u79cd\u4f7f\u7528\u60c5\u51b5\uff1a<\/p>\n

1. \u7528\u5728\u6839\u67e5\u8be2\u6761\u4ef6<\/h4>\n

\u6b64\u65f6\u9700\u4f20\u5165\u591a\u4e2a\u67e5\u8be2\u6761\u4ef6\uff0c\u8868\u793a\u9700\u540c\u65f6\u6ee1\u8db3\u63d0\u4f9b\u7684\u591a\u4e2a\u5b8c\u6574\u67e5\u8be2\u6761\u4ef6<\/p>\n

const _ = db.command\ndb.collection('todo').where(_.and([\n  {\n    progress: _.gt(50)\n  },\n  {\n    tags: 'cloud'\n  }\n])).get()\n<\/code><\/pre>\n
\u4f46\u4ee5\u4e0a\u7528 and \u7ec4\u6210\u7684\u67e5\u8be2\u6761\u4ef6\u662f\u4e0d\u5fc5\u8981\u7684\uff0c\u56e0\u4e3a\u4f20\u5165\u7684\u5bf9\u8c61\u7684\u5404\u5b57\u6bb5\u9690\u5f0f\u7ec4\u6210\u4e86 \u201c\u4e0e\u201d \u7684\u5173\u7cfb\uff0c\u4e0a\u8ff0\u6761\u4ef6\u7b49\u4ef7\u4e8e\u4e0b\u65b9\u66f4\u7b80\u6d01\u7684\u5199\u6cd5\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.gt(50),\n  tags: 'cloud'\n}).get()\n<\/code><\/pre>\n
\u901a\u5e38\u9700\u8981\u663e\u793a\u4f7f\u7528 and \u662f\u7528\u5728\u6709\u8de8\u5b57\u6bb5\u6216\u64cd\u4f5c\u7684\u65f6\u5019\uff0c\u5982\u4ee5\u4e0b\u8868\u793a \u201cprogress \u5b57\u6bb5\u5927\u4e8e 50 \u6216 tags \u5b57\u6bb5\u7b49\u4e8e cloud \u6216 tags \u6570\u7ec4\u5b57\u6bb5\uff08\u5982\u679c tags \u662f\u6570\u7ec4\uff09\u4e2d\u542b\u6709 cloud\u201d\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where(_.and([\n  _.or({\n    progress: _.gt(50)\n  }),\n  _.or({\n    tags: 'cloud'\n  })\n])).get()\n<\/code><\/pre>\n
2. \u7528\u5728\u5b57\u6bb5\u67e5\u8be2\u6761\u4ef6<\/h4>\n
\u9700\u4f20\u5165\u591a\u4e2a\u67e5\u8be2\u64cd\u4f5c\u7b26\u6216\u5e38\u91cf\uff0c\u8868\u793a\u5b57\u6bb5\u9700\u6ee1\u8db3\u6216\u5339\u914d\u7ed9\u5b9a\u7684\u6761\u4ef6\u3002<\/p>\n
\u5982\u4ee5\u4e0b\u7528\u524d\u7f6e\u5199\u6cd5\u7684\u65b9\u5f0f\u8868\u793a \"progress \u5b57\u6bb5\u503c\u5927\u4e8e 50 \u4e14\u5c0f\u4e8e 100\"<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.and(_.gt(50), _.lt(100))\n})\n<\/code><\/pre>\n
\u8fd8\u53ef\u4ee5\u7528\u540e\u7f6e\u5199\u6cd5\u7684\u65b9\u5f0f\u8868\u793a\u540c\u6837\u7684\u6761\u4ef6\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.gt(50).and(_.lt(100))\n})\n<\/code><\/pre>\n
\u6ce8\u610f Command \u9ed8\u8ba4\u4e5f\u53ef\u4ee5\u76f4\u63a5\u94fe\u5f0f\u8c03\u7528\u5176\u4ed6 Command\uff0c\u9ed8\u8ba4\u8868\u793a\u591a\u4e2a Command \u7684\u4e0e\u64cd\u4f5c\uff0c\u56e0\u6b64\u4e0a\u8ff0\u4ee3\u7801\u8fd8\u53ef\u4ee5\u7cbe\u7b80\u4e3a\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.gt(50).lt(100)\n})\n<\/code><\/pre>\n
\u8c03\u7528\u98ce\u683c<\/h2>\n
\u65b9\u6cd5\u63a5\u6536\u4e24\u79cd\u4f20\u53c2\u65b9\u5f0f\uff0c\u4e00\u662f\u4f20\u5165\u4e00\u4e2a\u6570\u7ec4\u53c2\u6570\uff0c\u4e8c\u662f\u4f20\u5165\u591a\u4e2a\u53c2\u6570\uff0c\u6548\u679c\u4e00\u6837\u3002<\/p>\n
\/\/ \u4f20\u5165\u6570\u7ec4\nfunction and(expressions: Expression[]): Command\n\/\/ \u4f20\u5165\u591a\u53c2\u6570\nfunction and(...expressions: Expression[]): Command<\/code><\/pre>\n
 <\/p>\n
\n
Command.or(expressions: any[]): Command<\/h2>\n
\n  \u652f\u6301\u7aef\uff1a\u5c0f\u7a0b\u5e8f , \u4e91\u51fd\u6570 , Web\n<\/p><\/blockquote>\n
\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u6216\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u540c\u65f6\u6ee1\u8db3\u591a\u4e2a\u67e5\u8be2\u7b5b\u9009\u6761\u4ef6\u3002\u6216\u6307\u4ee4\u6709\u4e24\u79cd\u7528\u6cd5\uff0c\u4e00\u662f\u53ef\u4ee5\u8fdb\u884c\u5b57\u6bb5\u503c\u7684 \u201c\u6216\u201d \u64cd\u4f5c\uff0c\u4e8c\u662f\u4e5f\u53ef\u4ee5\u8fdb\u884c\u8de8\u5b57\u6bb5\u7684 \u201c\u6216\u201d \u64cd\u4f5c\u3002<\/p>\n
\u53c2\u6570<\/h2>\n
expressions: any[]<\/h3>\n
\u8fd4\u56de\u503c<\/h2>\n
Command<\/h3>\n
\u5b57\u6bb5\u503c\u7684\u6216\u64cd\u4f5c<\/h2>\n
\u5b57\u6bb5\u503c\u7684 \u201c\u6216\u201d \u64cd\u4f5c\u6307\u7684\u662f\u6307\u5b9a\u4e00\u4e2a\u5b57\u6bb5\u503c\u4e3a\u591a\u4e2a\u503c\u4e4b\u4e00\u5373\u53ef\u3002<\/p>\n
\u5982\u7b5b\u9009\u51fa\u8fdb\u5ea6\u5927\u4e8e 80 \u6216\u5c0f\u4e8e 20 \u7684 todo\uff1a<\/p>\n
\u6d41\u5f0f\u5199\u6cd5\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.gt(80).or(_.lt(20))\n})\n<\/code><\/pre>\n
\u524d\u7f6e\u5199\u6cd5\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.or(_.gt(80), _.lt(20))\n})\n<\/code><\/pre>\n
\u524d\u7f6e\u5199\u6cd5\u4e5f\u53ef\u63a5\u6536\u4e00\u4e2a\u6570\u7ec4\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.or([_.gt(80), _.lt(20)])\n})\n<\/code><\/pre>\n
\u8de8\u5b57\u6bb5\u7684\u6216\u64cd\u4f5c<\/h2>\n
\u8de8\u5b57\u6bb5\u7684 \u201c\u6216\u201d \u64cd\u4f5c\u6307\u6761\u4ef6 \u201c\u6216\u201d\uff0c\u76f8\u5f53\u4e8e\u53ef\u4ee5\u4f20\u5165\u591a\u4e2a where \u8bed\u53e5\uff0c\u6ee1\u8db3\u5176\u4e2d\u4e00\u4e2a\u5373\u53ef\u3002<\/p>\n
\u5982\u7b5b\u9009\u51fa\u8fdb\u5ea6\u5927\u4e8e 80 \u6216\u5df2\u6807\u4e3a\u5df2\u5b8c\u6210\u7684 todo\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where(_.or([\n  {\n    progress: _.gt(80)\n  },\n  {\n    done: true\n  }\n]))\n<\/code><\/pre>\n
\u8c03\u7528\u98ce\u683c<\/h2>\n
\u65b9\u6cd5\u63a5\u6536\u4e24\u79cd\u4f20\u53c2\u65b9\u5f0f\uff0c\u4e00\u662f\u4f20\u5165\u4e00\u4e2a\u6570\u7ec4\u53c2\u6570\uff0c\u4e8c\u662f\u4f20\u5165\u591a\u4e2a\u53c2\u6570\uff0c\u6548\u679c\u4e00\u6837\u3002<\/p>\n
\/\/ \u4f20\u5165\u6570\u7ec4\nfunction or(expressions: Expression[]): Command\n\/\/ \u4f20\u5165\u591a\u53c2\u6570\nfunction or(...expressions: Expression[]): Command<\/code><\/pre>\n
\n
Command.not(command: Command): Command<\/h2>\n
\n  \u652f\u6301\u7aef\uff1a\u5c0f\u7a0b\u5e8f 2.8.3, \u4e91\u51fd\u6570 1.2.1, Web\n<\/p><\/blockquote>\n
\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u975e\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u4e0d\u6ee1\u8db3\u6307\u5b9a\u7684\u6761\u4ef6\u3002<\/p>\n
\u53c2\u6570<\/h2>\n
command: Command<\/h3>\n
\u8fd4\u56de\u503c<\/h2>\n
Command<\/h3>\n
\u793a\u4f8b<\/h2>\n
\u5982\u7b5b\u9009\u51fa\u8fdb\u5ea6\u4e0d\u7b49\u4e8e100\u7684 todo\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.not(_.eq(100))\n})\n<\/code><\/pre>\n
not \u4e5f\u53ef\u642d\u914d\u5176\u4ed6\u903b\u8f91\u6307\u4ee4\u4f7f\u7528\uff0c\u5305\u62ec and, or, nor, not\uff0c\u5982 or\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.not(_.or([_.lt(50), _.eq(100)]))\n})<\/code><\/pre>\n
\n
Command.nor(expressions: any[]): Command<\/h2>\n
\n  \u652f\u6301\u7aef\uff1a\u5c0f\u7a0b\u5e8f 2.8.3, \u4e91\u51fd\u6570 1.2.1, Web\n<\/p><\/blockquote>\n
\u67e5\u8be2\u64cd\u4f5c\u7b26\uff0c\u7528\u4e8e\u8868\u793a\u903b\u8f91 \"\u90fd\u4e0d\" \u7684\u5173\u7cfb\uff0c\u8868\u793a\u9700\u4e0d\u6ee1\u8db3\u6307\u5b9a\u7684\u6240\u6709\u6761\u4ef6\u3002\u5982\u679c\u8bb0\u5f55\u4e2d\u6ca1\u6709\u5bf9\u5e94\u7684\u5b57\u6bb5\uff0c\u5219\u9ed8\u8ba4\u6ee1\u8db3\u6761\u4ef6\u3002<\/p>\n
\u53c2\u6570<\/h2>\n
expressions: any[]<\/h3>\n
\u8fd4\u56de\u503c<\/h2>\n
Command<\/h3>\n
\u793a\u4f8b 1<\/h2>\n
\u7b5b\u9009\u51fa\u8fdb\u5ea6\u65e2\u4e0d\u5c0f\u4e8e20\u53c8\u4e0d\u5927\u4e8e80\u7684 todo \uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.nor([_.lt(20), _.gt(80)])\n})\n<\/code><\/pre>\n
\u4ee5\u4e0a\u540c\u65f6\u4f1a\u7b5b\u9009\u51fa\u4e0d\u5b58\u5728 progress \u5b57\u6bb5\u7684\u8bb0\u5f55\uff0c\u5982\u679c\u8981\u8981\u6c42 progress \u5b57\u6bb5\u5b58\u5728\uff0c\u53ef\u4ee5\u7528 exists \u6307\u4ee4\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where({\n  progress: _.exists().nor([_.lt(20), _.gt(80)])\n  \/\/ \u7b49\u4ef7\u4e8e\u4ee5\u4e0b\u975e\u94fe\u5f0f\u8c03\u7528\u7684\u5199\u6cd5\uff1a\n  \/\/ progress: _.exists().and(_.nor([_.lt(20), _.gt(80)]))\n}).get()\n<\/code><\/pre>\n
\u793a\u4f8b 2<\/h2>\n
\u7b5b\u9009\u51fa progress \u4e0d\u5c0f\u4e8e 20 \u4e14 tags \u6570\u7ec4\u4e0d\u5305\u542b miniprogram \u5b57\u7b26\u4e32\u7684\u8bb0\u5f55\uff1a<\/p>\n
const _ = db.command\ndb.collection('todo').where(_.nor([{\n  progress: _.lt(20),\n}, {\n  tags: 'miniprogram',\n}])).get()\n<\/code><\/pre>\n
\u4ee5\u4e0a\u4f1a\u7b5b\u9009\u51fa\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\u4e4b\u4e00\u7684\u8bb0\u5f55\uff1a<\/p>\n
    \n
  1. progress \u4e0d\u5c0f\u4e8e 20 \u4e14 tags \u6570\u7ec4\u4e0d\u5305\u542b miniprogram \u5b57\u7b26\u4e32<\/li>\n
  2. progress \u4e0d\u5c0f\u4e8e 20 \u4e14 tags \u5b57\u6bb5\u4e0d\u5b58\u5728<\/li>\n
  3. progress \u5b57\u6bb5\u4e0d\u5b58\u5728 \u4e14 tags \u6570\u7ec4\u4e0d\u5305\u542b miniprogram \u5b57\u7b26\u4e32<\/li>\n
  4. progress \u4e0d\u5c0f\u4e8e 20 \u4e14 tags \u5b57\u6bb5\u4e0d\u5b58\u5728<\/li>\n<\/ol>\n
    \u5982\u679c\u8981\u6c42 progress \u548c tags \u5b57\u6bb5\u5b58\u5728\uff0c\u53ef\u4ee5\u7528 exists \u6307\u4ee4\uff1a<\/p>\n
    const _ = db.command\ndb.collection('todo').where(\n  _.nor([{\n    progress: _.lt(20),\n  }, {\n    tags: 'miniprogram',\n  }])\n  .and({\n    progress: _.exists(true),\n    tags: _.exists(true),\n  })\n)\n<\/code><\/pre>\n
    \u8c03\u7528\u98ce\u683c<\/h2>\n
    \u65b9\u6cd5\u63a5\u6536\u4e24\u79cd\u4f20\u53c2\u65b9\u5f0f\uff0c\u4e00\u662f\u4f20\u5165\u4e00\u4e2a\u6570\u7ec4\u53c2\u6570\uff0c\u4e8c\u662f\u4f20\u5165\u591a\u4e2a\u53c2\u6570\uff0c\u6548\u679c\u4e00\u6837\u3002<\/p>\n
    \/\/ \u4f20\u5165\u6570\u7ec4\nfunction nor(expressions: Expression[]): Command\n\/\/ \u4f20\u5165\u591a\u53c2\u6570\nfunction nor(...expressions: Expression[]): Command<\/code><\/pre>\n
    <\/p>\n","protected":false},"excerpt":{"rendered":"
    Command.and(expressions: any[]): Command \u652f\u6301\u7aef\uff1a\u5c0f\u7a0b\u5e8f&n […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[182398],"tags":[],"class_list":["post-184928","post","type-post","status-publish","format-standard","hentry","category-mini-program"],"_links":{"self":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/184928","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/comments?post=184928"}],"version-history":[{"count":0,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/posts\/184928\/revisions"}],"wp:attachment":[{"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/media?parent=184928"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/categories?post=184928"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idc.net\/help\/wp-json\/wp\/v2\/tags?post=184928"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}