题解 | #单向绑定#
单向绑定
https://www.nowcoder.com/practice/728b83e2b9b948dbababcc4a494eefc3
{"html":"<!DOCTYPE html>\r\n<html>\r\n <head>\r\n <meta charset=utf-8>\r\n </head>\r\n <body>\r\n \t<input id=\"input\" type=\"text\" />\r\n <span id=\"span\"></span>\r\n\r\n <script type=\"text/javascript\">\r\n // 补全代码\r\n var int=document.querySelector(\"#input\")\r\n var sp=document.querySelector(\"span\")\r\n int.onchange=function(){\r\n sp.innerHTML=int.value\r\n }\r\n </script>\r\n </body>\r\n</html>","css":"/* html, body {\\n\\twidth: 100%;\\n\\theight: 100%;\\n\\tmargin: 0;\\n\\tpadding: 0;\\n} */","js":"// 请在这里输入代码"}
