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剑指 Offer II 041. 滑动窗口的平均值

小编译bug

目前认为是切片初始化时的“}”被当做函数的“}”，引起的报错，
修改后不报错：

type MovingAverage struct {
    size int
    sum    int
    nums   []int
}


/** Initialize your data structure here. */
func Constructor(size int) MovingAverage {
    return  MovingAverage{
        size:   size,
        sum:    0,
        nums:   []int{}}
}


func (this *MovingAverage) Next(val int) float64 {
    this.sum+=val
    this.nums=append(this.nums,val)
    for len(this.nums)>this.size{
        this.sum-=this.nums[0]
        this.nums=this.nums[1:]
    }
    return float64(this.sum)/float64(len(this.nums))


}


/**
 * Your MovingAverage object will be instantiated and called as such:
 * obj := Constructor(size);
 * param_1 := obj.Next(val);
 */