一、最终效果图

二、表格启用复选框并初始化赋值

onSelectAll: function() { calc_sum(); },
onSelectRow: function() { calc_sum(); },// 加载成功后执行事件
ajaxSuccess: function(data){var dy 				= 0;var glbzqmrsdtyg 	= 0;var glbzqmrsschyg 	= 0;var glbzqmrsqtcy 	= 0;var glbzqmrsjdgz 	= 0;for (let i = 0; i < data.rows.length; i++) {var row = data.rows[i];dy 					+= row.dy;glbzqmrsdtyg 		+= row.glbzqmrsdtyg;glbzqmrsschyg 		+= row.glbzqmrsschyg;glbzqmrsqtcy 		+= row.glbzqmrsqtcy;glbzqmrsjdgz 		+= row.glbzqmrsjdgz;}$('#dataGrid').dataGrid("footerData", "set", {'dw' : '<em>合计：&nbsp;</em>','dy'	: 	'<em>'+dy+'</em>','glbzqmrsdtyg