{"id":68181,"date":"2018-07-19T23:28:43","date_gmt":"2018-07-19T15:28:43","guid":{"rendered":"http:\/\/www.xiaoyebailong.com\/?p=68181"},"modified":"2018-07-26T23:28:55","modified_gmt":"2018-07-26T15:28:55","slug":"setdata%e9%a1%b5%e9%9d%a2%e6%95%b0%e6%8d%ae%e5%88%b7%e6%96%b0","status":"publish","type":"post","link":"http:\/\/www.xiaoyebailong.com\/index.php\/2018\/07\/19\/68181.htm","title":{"rendered":"setData(\u9875\u9762\u6570\u636e\u5237\u65b0)"},"content":{"rendered":"

\u9996\u5148\u8981\u6ce8\u610f\u7684\u662f\uff1a
\n1\u3001\u76f4\u63a5\u4fee\u6539 this.data \u800c\u4e0d\u8c03\u7528 this.setData \u662f\u65e0\u6cd5\u6539\u53d8\u9875\u9762\u7684\u72b6\u6001\u7684\uff0c\u8fd8\u4f1a\u9020\u6210\u6570\u636e\u4e0d\u4e00\u81f4
\n2\u3001\u5355\u6b21\u8bbe\u7f6e\u7684\u6570\u636e\u4e0d\u80fd\u8d85\u8fc71024kB\uff0c\u8bf7\u5c3d\u91cf\u907f\u514d\u4e00\u6b21\u8bbe\u7f6e\u8fc7\u591a\u7684\u6570\u636e\u3002
\n3\u3001\u4e0d\u80fd\u5f88\u9891\u7e41\u7684\u8c03\u7528this.setData\uff0c\u4f8b\u5982\u81ea\u5df1\u6ce8\u518c\u4e00\u4e2aupdate\u51fd\u6570\uff0c\u6bcf\u5e27\u8c03\u7528\u4e00\u6b21this.setData\uff0c\u53ef\u80fd\u9020\u6210\u5e94\u7528\u5361\u987f<\/p>\n

\u4e0b\u9762\u7ed9\u51fa\u4e00\u4e2a\u793a\u4f8b\uff0c\u5e76\u5728\u540e\u9762\u8bb2\u89e3\u8fd9\u4e2a\u793a\u4f8b\u3002<\/p>\n

<!--pages\/test.wxml--><\/span>\r\n<text<\/span>><\/span><\/span>{{count<\/span>}}<\/span><\/text<\/span>><\/span>\r\n<button<\/span> bindtap<\/span>='clickCount'<\/span> data-msg<\/span>='click'<\/span>><\/span>\u70b9\u51fb\u8ba1\u6570<\/button<\/span>><\/span><\/span><\/code><\/pre>\n
\/\/ pages\/test.js<\/span>\r\nPage({\r\n\r\n  \/**\r\n   * \u9875\u9762\u7684\u521d\u59cb\u6570\u636e\r\n   *\/<\/span>\r\n  data: {\r\n    count: 0<\/span>,\r\n  },\r\n \/**\r\n   * \u8ba1\u6570\r\n   *\/<\/span>\r\n  clickCount(options) {\r\n    console.log(options);\r\n\r\n    this<\/span>.setData({\r\n      count: this<\/span>.data.count + 1<\/span>\r\n    });\r\n  }\r\n})<\/code><\/pre>\n
\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\"
\n\u6bcf\u6b21\u66f4\u6539count\u503c\uff0c\u5c31\u53ef\u4ee5\u5728\u9875\u9762\u5237\u65b0\u51fa\u6765\u4e86\u3002\u7b80\u5355\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n
\u6211\u4eec\u5728\u70b9\u51fb\u7684\u65f6\u5019\u8c03\u7528\u4e86clickCount(options)\u51fd\u6570\uff0c\u5e76\u4e14\u5c06options\u6253\u5370\u51fa\u6765\u4e86\uff0c\u5982\u679c\u6211\u4eec\u8981\u7ed9clickCount\u4f20\u9012\u53c2\u6570\u600e\u4e48\u529e\u5462\uff0c\u53ef\u4ee5\u8fd9\u6837\u4f7f\u7528\uff1a<\/p>\n
<button<\/span> bindtap<\/span>='clickCount'<\/span> data-msg<\/span>='click'<\/span>><\/span>\u70b9\u51fb\u8ba1\u6570<\/button<\/span>><\/span><\/code><\/pre>\n
    \n
  • 1<\/li>\n<\/ul>\n
    data-(\u4f60\u60f3\u4f20\u9012\u7684\u53c2\u6570\u7c7b\u578b)=\u201d\u53c2\u6570\u201d\uff0c\u5fae\u4fe1\u4f1a\u5e2e\u4f60\u5c01\u88c5\u6570\u636e\uff0c\u5c06\u4f60\u70b9\u51fb\u4fe1\u606f\uff0c\u9875\u9762\u7684\u4e00\u4e9b\u4fe1\u606f\u4f20\u9012\u5230\u903b\u8f91\u6bb5\uff0c\u770b\u4e0b\u56fe\u3002
    \n\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\"
    \nmsg\u53c2\u6570\u5728Target\u4e2d
    \n\"\u8fd9\u91cc\u5199\u56fe\u7247\u63cf\u8ff0\"
    \n\u4f7f\u7528\u65b9\u5f0f\uff1a<\/p>\n
    let count = options.target<\/span>.dataset<\/span>.msg<\/span>;<\/span><\/code><\/pre>\n
      \n
    • 1<\/li>\n<\/ul>\n
      \u6570\u636e\u7684\u4f7f\u7528\u5c31\u5230\u8fd9\u91cc\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u9996\u5148\u8981\u6ce8\u610f\u7684\u662f\uff1a 1\u3001\u76f4\u63a5\u4fee\u6539 this.data \u800c\u4e0d\u8c03\u7528 this.setData \u662f\u65e0\u6cd5\u6539\u53d8\u9875\u9762\u7684\u72b6\u6001\u7684\uff0c\u8fd8\u4f1a\u9020\u6210\u6570\u636e\u4e0d\u4e00\u81f4 2\u3001\u5355\u6b21\u8bbe\u7f6e\u7684\u6570\u636e\u4e0d\u80fd\u8d85\u8fc71024kB\uff0c\u8bf7\u5c3d\u91cf\u907f\u514d\u4e00\u6b21\u8bbe\u7f6e\u8fc7\u591a\u7684\u6570\u636e\u3002 3\u3001\u4e0d\u80fd\u5f88\u9891\u7e41\u7684\u8c03\u7528this.set…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[421],"topic":[],"class_list":["post-68181","post","type-post","status-publish","format-standard","hentry","category-wx","tag-setdata"],"_links":{"self":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/comments?post=68181"}],"version-history":[{"count":1,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68181\/revisions"}],"predecessor-version":[{"id":68182,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/68181\/revisions\/68182"}],"wp:attachment":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/media?parent=68181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/categories?post=68181"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/tags?post=68181"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/topic?post=68181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}