我正在嘗試從 HTML 片段中提取目標屬性并添加到切片中<div class="pagination pagination-responsive"> <ul class="list-unstyled"> <li class="active"> <a rel="start" target="1" href="/s/Cambridge--MA--United-States">1</a> </li> <li> <a rel="next" target="2" href="/s/Cambridge--MA--United-States?page=2">2</a> </li> <li> <a target="3" href="/s/Cambridge--MA--United-States?page=3">3</a> </li> <li class="gap"><span class="gap">…</span> </li> <li> <a target="17" href="/s/Cambridge--MA--United-States?page=17">17</a> </li> <li class="next next_page"><a target="2" rel="next" href="/s/Cambridge--MA--United-States?page=2"> <span class="screen-reader-only">Next</span><i class="icon icon-caret-right"></i></a> </li> </ul> </div> </div>pageCounts := doc.Find(".pagination-responsive .list-unstyled") for page := range pageCounts.Nodes { pageIterator := pageCounts.Eq(page) li := pageIterator.Find("li a") href, _ := li.Attr("target") fmt.Println(href) }有人可以指出我在這里可能缺少什么嗎？
1 回答
眼眸繁星
TA貢獻1873條經驗 獲得超9個贊
li := pageIterator.Find("li a")實際上是一個元素序列，但你只需要第一個元素的屬性。在這方面，它有點像 jquery。您真正想要做的是遍歷所有鏈接，并Each在這里成為您的朋友。我發現它比用 Eq 迭代要容易得多。
這個片段對我有用：
var html = `
<div class="pagination pagination-responsive">
<ul class="list-unstyled">
<li class="active">
<a rel="start" target="1" href="/s/Cambridge--MA--United-States">1</a>
</li>
<li>
<a rel="next" target="2" href="/s/Cambridge--MA--United-States?page=2">2</a>
</li>
<li>
<a target="3" href="/s/Cambridge--MA--United-States?page=3">3</a>
</li>
<li class="gap"><span class="gap">…</span>
</li>
<li>
<a target="17" href="/s/Cambridge--MA--United-States?page=17">17</a>
</li>
<li class="next next_page"><a target="2" rel="next" href="/s/Cambridge--MA--United-States?page=2">
<span class="screen-reader-only">Next</span><i class="icon icon-caret-right"></i></a>
</li>
</ul>
</div>
</div>
`
func main() {
doc, err := goquery.NewDocumentFromReader(strings.NewReader(html))
pageCounts := doc.Find(".pagination-responsive .list-unstyled")
pageCounts.Each(func(_ int, ul *goquery.Selection) {
links := ul.Find("li a")
links.Each(func(_ int, li *goquery.Selection) {
if val, ok := li.Attr("target"); ok {
fmt.Println(val)
}
})
})
}
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