zxy6681:
为什么我改了一个开关电源,不行.空载时-d为2.8v,+d为2.0v.接上ipodtouch2,变为0.5v,0.4v.[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/80/1252531251077327.jpg');}"onmousewheel="returnimgzoom(this);">