svg描边渐变的方法

  <svg id="svgConnections" >
    <defs>
      <linearGradient id="grad1" >
        <stop offset="0%" style="stop-color:rgb(255,255,0);stop-opacity:1" />
        <stop offset="100%" style="stop-color:rgb(255,0,0);stop-opacity:0" />
      </linearGradient>
    </defs>            
    <path d="M40,40 L100,100 Z" stroke="url(#grad1)" stroke-width="11" />
  </svg>

https://codepen.io/a6965921/pen/dyNwZMw