{"id":53221,"date":"2024-12-03T14:07:18","date_gmt":"2024-12-03T06:07:18","guid":{"rendered":"https:\/\/fwq.ai\/blog\/53221\/"},"modified":"2024-12-03T14:07:18","modified_gmt":"2024-12-03T06:07:18","slug":"react%e4%b8%ad%e7%b1%bb%e5%9e%8bnever%e4%b8%8a%e4%b8%8d%e5%ad%98%e5%9c%a8%e5%b1%9e%e6%80%a7childfocusfn%e9%94%99%e8%af%af%e5%a6%82%e4%bd%95%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/53221\/","title":{"rendered":"React\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>React\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f<\/h1>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aReact\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241128\/17327628516747dce36195a.jpg\" class=\"aligncenter\" title=\"React\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" alt=\"React\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildfocusfn\u201d\u3002ts(2339)\u201d\u9519\u8bef\u7684\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728 react \u4e2d\u4f7f\u7528 forwardref \u548c useimperativehandle \u65f6\uff0c\u5982\u679c\u4e0d\u6b63\u786e\u5730\u6307\u5b9a\u5b83\u4eec\u7684\u7c7b\u578b\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\uff1a\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildfocusfn\u201d\u3002ts(2339)\u201d\u3002<\/p>\n<p>\u8981\u907f\u514d\u6b64\u9519\u8bef\uff0c\u9700\u8981\u5728\u4f7f\u7528 useref \u521b\u5efa ref \u65f6\u6307\u5b9a\u6b63\u786e\u7684\u7c7b\u578b\u3002\u5728\u7ed9\u5b9a\u793a\u4f8b\u4e2d\uff0c\u5e94\u5c06 ref \u6307\u5b9a\u4e3a\u5177\u6709 childfocusfn \u5c5e\u6027\u7684\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>const ref = useRef&lt;{ childFocusFn: () =&gt; void }&gt;(null);<\/pre>\n<p>\u8fd9\u5c06\u6307\u793a typescript \u5c06 ref.current \u89e3\u91ca\u4e3a\u5177\u6709 childfocusfn \u5c5e\u6027\u7684\u5bf9\u8c61\uff0c\u4ece\u800c\u907f\u514d\u524d\u9762\u63d0\u5230\u7684\u9519\u8bef\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aReact\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   win10\u6b7b\u673a\u9f20\u6807\u80fd\u52a8\u4ec0\u4e48\u90fd\u6253\u4e0d\u5f00\u600e\u4e48\u529e win10\u6b7b\u673a\u9f20\u6807\u80fd\u52a8\u8be6\u89e3\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>React\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300aReact\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01 \u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildfocusfn\u201d\u3002ts(2339)\u201d\u9519\u8bef\u7684\u89e3\u51b3\u65b9\u6cd5 \u5728 react \u4e2d\u4f7f\u7528 forwardref \u548c useimperativehandle \u65f6\uff0c\u5982\u679c\u4e0d\u6b63\u786e\u5730\u6307\u5b9a\u5b83\u4eec\u7684\u7c7b\u578b\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\uff1a\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildfocusfn\u201d\u3002ts(2339)\u201d\u3002 \u8981\u907f\u514d\u6b64\u9519\u8bef\uff0c\u9700\u8981\u5728\u4f7f\u7528 useref \u521b\u5efa ref \u65f6\u6307\u5b9a\u6b63\u786e\u7684\u7c7b\u578b\u3002\u5728\u7ed9\u5b9a\u793a\u4f8b\u4e2d\uff0c\u5e94\u5c06 ref \u6307\u5b9a\u4e3a\u5177\u6709 childfocusfn \u5c5e\u6027\u7684\u7c7b\u578b\uff0c\u5982\u4e0b\u6240\u793a\uff1a const ref = useRef&lt;{ childFocusFn: () =&gt; void }&gt;(null); \u8fd9\u5c06\u6307\u793a typescript \u5c06 ref.current \u89e3\u91ca\u4e3a\u5177\u6709 childfocusfn \u5c5e\u6027\u7684\u5bf9\u8c61\uff0c\u4ece\u800c\u907f\u514d\u524d\u9762\u63d0\u5230\u7684\u9519\u8bef\u3002 \u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aReact\u4e2d\u201c\u7c7b\u578b\u201cnever\u201d\u4e0a\u4e0d\u5b58\u5728\u5c5e\u6027\u201cchildFocusFn\u201d\u9519\u8bef\u5982\u4f55\u89e3\u51b3\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u5427\uff01 win10\u6b7b\u673a\u9f20\u6807\u80fd\u52a8\u4ec0\u4e48\u90fd\u6253\u4e0d\u5f00\u600e\u4e48\u529e win10\u6b7b\u673a\u9f20\u6807\u80fd\u52a8\u8be6\u89e3<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-53221","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53221","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=53221"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/53221\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=53221"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=53221"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=53221"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}