题解 | #单向绑定#span和input可直接使用
单向绑定
https://www.nowcoder.com/practice/728b83e2b9b948dbababcc4a494eefc3
{"css":"","js":"","html":"<!DOCTYPE html>\n<html>\n <head>\n <meta charset=utf-8>\n </head>\n <body>\n \t<input id=\"input\" type=\"text\" />\n <span id=\"span\"></span>\n\n <script type=\"text/javascript\">\n // 补全代码\n input.onchange=function(){\n console.log(this.value);\n span.textContent=this.value\n }\n </script>\n </body>\n</html>","libs":[]}
