Function NewPaginations

utils/util.go:646–748

分页函数（这个分页函数不具有通用性） rollPage:展示分页的个数 totalRows：总记录 currentPage:每页显示记录数 urlPrefix:url链接前缀 urlParams:url键值对参数

(rollPage, totalRows, listRows, currentPage int, urlPrefix string, urlSuffix string, urlParams ...interface{})

// urlPrefix:url链接前缀
// urlParams:url键值对参数
func NewPaginations(rollPage, totalRows, listRows, currentPage int, urlPrefix string, urlSuffix string, urlParams ...interface{}) html1.HTML {
	var (
		htmlPage, path string
		pages          []int
		params         []string
	)
	//总页数
	totalPage := totalRows / listRows
	if totalRows%listRows > 0 {
		totalPage += 1
	}
	//只有1页的时候，不分页
	if totalPage < 2 {
		return ""
	}
	paramsLen := len(urlParams)
	if paramsLen > 0 {
		if paramsLen%2 > 0 {
			paramsLen = paramsLen - 1
		}
		for i := 0; i < paramsLen; {
			key := strings.TrimSpace(fmt.Sprintf("%v", urlParams[i]))
			val := strings.TrimSpace(fmt.Sprintf("%v", urlParams[i+1]))
			//键存在，同时值不为0也不为空
			if len(key) > 0 && len(val) > 0 && val != "0" {
				params = append(params, key, val)
			}
			i = i + 2
		}
	}

	path = strings.Trim(urlPrefix, "/")
	if len(params) > 0 {
		path = path + "/" + strings.Trim(strings.Join(params, "/"), "/")
	}
	//最后再处理一次“/”，是为了防止urlPrifix参数为空时，出现多余的“/”
	path = "/" + strings.Trim(path, "/")

	if currentPage > totalPage {
		currentPage = totalPage
	}
	if currentPage < 1 {
		currentPage = 1
	}
	index := 0
	rp := rollPage * 2
	for i := rp; i > 0; i-- {
		p := currentPage + rollPage - i
		if p > 0 && p <= totalPage {

			pages = append(pages, p)
		}
	}
	for k, v := range pages {
		if v == currentPage {
			index = k
		}
	}