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tooltip: {
//trigger: 'item', formatter: '{b}:{c}'
enterable:true,
trigger:'item',
formatter:function(params){
//console.log(params);
var relVal = params.name + "<br/>";
var ser = option.series;
for(var i = 0 ;i < ser.length;i++){
for(var j = 0 ;j<ser[i].data.length;j++){
if(ser[i].data[j].name==params.name){
relVal += ser[i].name+":"+ser[i].data[j].value+"<br/>";
}
}
}
return relVal;
}
}