option = {

        label:{//formatter名字

        show:true,

        formatter:function(obj){

            return obj.data.name+'_123'

        }

    },

    tooltip: {

        //可以自行添加，默认不添加

    },

    series: {

        type: 'sankey',

        layout:'none',

        focusNodeAdjacency: 'allEdges',

        data: [{

            name: 'a',

            value:11

        }, {

            name: 'b'

        }, {

            name: 'a1'

        }, {

            name: 'a2'

        }, {

            name: 'b1'

        }, {

            name: 'c'

        }],

        links: [{

            source: 'a',

            target: 'a1',

            value: 5

        }, {

            source: 'a',

            target: 'a2',

            value: 3

        }, {

            source: 'b',

            target: 'b1',

            value: 8

        }, {

            source: 'a',

            target: 'b1',

            value: 3

        }, {

            source: 'b1',

            target: 'a1',

            value: 1

        }, {

            source: 'b1',

            target: 'c',

            value: 2

        }]

    }

};