1.效果

2.代码

let pageSize = 10
$(document).on("change", '#selPageSize', () => { // 下拉选择每页数目促发事件
    pageSize = $("#selPageSize").val();
    init () // 重新获取数据渲染表格
})
function initTable(tableData) {
    $('#dt-table').bootstrapTable('destroy').bootstrapTable({
        data: tableData,
        pageSize : pageSize,//单页记录数
        onPageChange(number, size) {
            setSelPageSizeDom()
        },
    });

    setSelPageSizeDom ()
    function setSelPageSizeDom () {
        let strHtml = `<span class="page-list" style="margin-top: 12px">每页显示 
        					<select id="selPageSize" style="border: 1px solid #cccccc; border-radius: 4px; padding: 4px 10px">
					            <option value="5" ${pageSize == 5 ? 'selected' : ''}>5</option>
					            <option value="10" ${pageSize == 10 ? 'selected' : ''}>10</option>
					            <option value="15" ${pageSize == 15 ? 'selected' : ''}>15</option>
					            <option value="30" ${pageSize == 30 ? 'selected' : ''}>30</option>
					            <option value="50" ${pageSize == 50 ? 'selected' : ''}>50</option>
				        	</select> 条记录
		        		<span>`
        $(".fixed-table-pagination").append(strHtml);
    }
}