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);
}
});
