{"id":3646,"date":"2024-11-10T09:40:35","date_gmt":"2024-11-10T01:40:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3646\/"},"modified":"2024-11-10T09:40:35","modified_gmt":"2024-11-10T01:40:35","slug":"%e6%9e%84%e9%80%a0%e5%87%bd%e6%95%b0%e4%b8%ad%e4%bd%bf%e7%94%a8-setinterval-%e9%81%87%e5%88%b0-this-%e6%8c%87%e5%90%91%e9%97%ae%e9%a2%98%ef%bc%9a%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3-setinterval","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3646\/","title":{"rendered":"\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setInterval \u9047\u5230 this \u6307\u5411\u95ee\u9898\uff1a\u5982\u4f55\u89e3\u51b3 setInterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u7684\u95ee\u9898\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173111107591516.jpg\" class=\"aligncenter\" title=\"\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setInterval \u9047\u5230 this \u6307\u5411\u95ee\u9898\uff1a\u5982\u4f55\u89e3\u51b3 setInterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u7684\u95ee\u9898\uff1f\u63d2\u56fe\" alt=\"\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setInterval \u9047\u5230 this \u6307\u5411\u95ee\u9898\uff1a\u5982\u4f55\u89e3\u51b3 setInterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u7684\u95ee\u9898\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setinterval \u9047\u5230this\u6307\u5411\u95ee\u9898<\/strong><\/p>\n<p>\u5728\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setinterval \u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230 this \u6307\u5411\u7684\u95ee\u9898\uff0c\u5bfc\u81f4 setinterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u3002<\/p>\n<p><strong>\u95ee\u9898\u8be6\u89e3<\/strong><\/p>\n<p>\u56fe\u7247\u52a0\u8f7d\u8fdb\u5ea6\u6761\u7684\u6784\u9020\u51fd\u6570\u4e2d\u6709\u4e00\u4e2a circle \u65b9\u6cd5\uff0c\u7531 settimeout \u8c03\u7528\u3002\u7531\u4e8e setinterval \u4e2d\u7684 this \u6307\u5411\u4e0d\u660e\u786e\uff0c\u5bfc\u81f4 circle \u65b9\u6cd5\u4e2d\u7684 this \u6307\u5411\u4e86 window \u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u6784\u9020\u51fd\u6570\u5b9e\u4f8b\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n<p>\u6709\u4e24\u79cd\u89e3\u51b3\u529e\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 bind \u65b9\u6cd5<\/strong><\/p>\n<pre>_this.circle.bind(this); \/\/ _this \u4e3a\u6784\u9020\u51fd\u6570\u5b9e\u4f8b<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>2. \u4f7f\u7528\u7bad\u5934\u51fd\u6570<\/strong><\/p>\n<pre>setInterval(() =&gt; {\n  _this.circle(); \/\/ _this \u4e3a\u6784\u9020\u51fd\u6570\u5b9e\u4f8b\n});<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u901a\u8fc7\u7ed1\u5b9a this \u6216\u4f7f\u7528\u7bad\u5934\u51fd\u6570\uff0c\u53ef\u4ee5\u786e\u4fdd circle \u65b9\u6cd5\u4e2d\u7684 this \u6307\u5411\u6b63\u786e\u7684\u6784\u9020\u51fd\u6570\u5b9e\u4f8b\uff0c\u4ece\u800c\u89e3\u51b3 setinterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u7684\u95ee\u9898\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setInterval \u9047\u5230 this \u6307\u5411\u95ee\u9898\uff1a\u5982\u4f55\u89e3\u51b3 setInterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u7684\u95ee\u9898\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setinterval \u9047\u5230this\u6307\u5411\u95ee\u9898 \u5728\u6784\u9020\u51fd\u6570\u4e2d\u4f7f\u7528 setinterval \u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230 this \u6307\u5411\u7684\u95ee\u9898\uff0c\u5bfc\u81f4 setinterval \u53ea\u80fd\u6267\u884c\u4e00\u6b21\u3002 \u95ee\u9898\u8be6\u89e3 \u56fe\u7247\u52a0\u8f7d\u8fdb\u5ea6\u6761\u7684\u6784\u9020\u51fd\u6570\u4e2d\u6709\u4e00\u4e2a circle \u65b9\u6cd5\uff0c\u7531 settimeout \u8c03\u7528\u3002\u7531\u4e8e setinterval \u4e2d\u7684 this \u6307\u5411\u4e0d\u660e\u786e\uff0c\u5bfc\u81f4 circle \u65b9\u6cd5\u4e2d\u7684 this \u6307\u5411\u4e86 window \u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u6784\u9020\u51fd\u6570\u5b9e\u4f8b\u3002 \u89e3\u51b3\u65b9\u6848 \u6709\u4e24\u79cd\u89e3\u51b3\u529e\u6cd5\uff1a 1. \u4f7f\u7528 bind \u65b9\u6cd5 _this.circle.bind(this); \/\/ _this \u4e3a\u6784\u9020\u51fd\u6570\u5b9e\u4f8b \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528\u7bad\u5934\u51fd\u6570 setInterval(() =&gt; { _this.circle(); \/\/ _this \u4e3a\u6784\u9020\u51fd\u6570\u5b9e\u4f8b }); \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u7ed1\u5b9a this \u6216\u4f7f\u7528\u7bad\u5934\u51fd\u6570\uff0c\u53ef\u4ee5\u786e\u4fdd circle \u65b9\u6cd5\u4e2d\u7684 this \u6307\u5411\u6b63\u786e\u7684\u6784\u9020\u51fd\u6570\u5b9e\u4f8b\uff0c\u4ece\u800c\u89e3\u51b3 [&hellip;]<\/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-3646","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3646","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=3646"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3646\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3646"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3646"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3646"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}