js负数转正数var num = -1.2456;var num2 = Math.abs(num);//console.log(num2);结果显示num2为1.2456;版权声明:本文为qq_38839887原创文章,遵循CC 4.0 BY-SA版权协议,转载请附上原文出处链接和本声明。原文链接:https://blog.csdn.net/qq_38839887/article/details/91511162