myChart.on('legendselectchanged', function(params) {
var name = params.name;
if(name == '全部'){
var selected = params.selected;
var flag = selected[name];

var selectArr = myChart.getOption().legend[0].data; var obj = {}; for(var key in selectArr){ obj[selectArr[key]] = flag; } option.legend.selected = obj; myChart.setOption(option); }});