-1不是倒数第一个吗，为什么输出的结尾位置是倒数第二个

源自：7-21 选定元素slice()

var myarr1= ["我","爱","你","aa","r2sd","sg"]; document.write(myarr1.slice(2,-1)); //你,aa,r2sd

提问者：慕的地7112823 2024-06-26 10:44