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<!doctype html> <html lang= "en" > <head> <meta charset= "utf-8" > <title>每天一个JavaScript实例-处理textarea中的字符成每一行</title> <script> function clicka(){ console.log( "aaa" ); var aa = document.getElementById( "text" ); var lines = aa.value.split( "\n" ); var bbb = document.getElementById( "result" ); var string = "" ; for (i=0;i<lines.length;i++){ string+= lines[i]+ "<br />" ; ////</br> 和<br /> 应该用 <br /> } bbb.innerHTML=string } </script> </head> <body> <textarea id= "text" placeholder= "请输入多行文字" ></textarea> <div id = "result" ></div> <a href= "javascript:void(0);" onClick= "clicka()" >处理换行</a> </body> </html> |