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|\n| --- | --- | --- | --- |\n| id | string | true | 指定的元素ID |\n| target | object | false | 从指定的节点开始查找，为空时从根节点开始查找 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class=\"gatsby-highlight\" data-language=\"javascript\"><pre class=\"language-javascript\"><code class=\"language-javascript\"><span class=\"token keyword\">const</span> target <span class=\"token operator\">=</span> <span class=\"token punctuation\">{</span>\n\tid<span class=\"token punctuation\">:</span> <span class=\"token string\">'sub1'</span><span class=\"token punctuation\">,</span>\n  children<span class=\"token punctuation\">:</span> <span class=\"token punctuation\">[</span><span class=\"token operator\">...</span><span class=\"token punctuation\">]</span>\n<span class=\"token punctuation\">}</span>\n\n<span class=\"token comment\">// 从target节点开始查找sub1.1节点</span>\n<span class=\"token keyword\">const</span> subData <span class=\"token operator\">=</span> treeGraph<span class=\"token punctuation\">.</span><span class=\"token function\">findDataById</span><span class=\"token punctuation\">(</span><span class=\"token string\">'sub1.1'</span><span class=\"token punctuation\">,</span> target<span class=\"token punctuation\">)</span>\n  \n<span class=\"token comment\">// 从根节点开始查找sub1.1节点</span>\n<span class=\"token keyword\">const</span> subData <span class=\"token operator\">=</span> treeGraph<span class=\"token punctuation\">.</span><span class=\"token function\">findDataById</span><span class=\"token punctuation\">(</span><span class=\"token string\">'sub1.1'</span><span class=\"token punctuation\">)</span></code></pre></div>","position":{"start":{"line":328,"column":1,"offset":9253},"end":{"line":339,"column":4,"offset":9475}}}],"position":{"start":{"line":1,"column":1,"offset":0},"end":{"line":340,"column":1,"offset":9476}}}}