huly:
[图片]500){this.resized=true;this.width=500;this.alt='这是一张缩略图,点击可放大。\n按住CTRL,滚动鼠标滚轮可自由缩放';this.style.cursor='hand'}"onclick="if(!this.resized){returntrue;}else{window.open('http://u.dianyuan.com/bbs/u/75/3213981237532186.jpg');}"onmousewheel="returnimgzoom(this);">请教36v电动车充电器输出电压正常,没电流也不会脉冲,是哪部件毛病?