数组去重复

 

 

 

var x = [1,2,2,3,4,5,6,7,7,8]
var y = x[x.length-1]
var z= []
for (var i = 0;i<x.length;i++)
{
    if (y!=x[i])
    {
        z.push(x[i])
        y = x[i]
    }
}