html中px写与不写,html5 – html中“100”和“100px”之间的区别
我正打算创建一个尺寸为500px * 500px的html5画布：并在其上划线(70px,70px)到(140px,140px)：var canvas = document.getElementById( "stone" );var context;try {context = canvas.getContext( "2d" );} catch( e ) {$( "support" ).html(...
