echarts怎么按不同颜色绘制地类图斑？

地类图斑是一个用shp生成的geojson文件，但是没有name字段，json一段如下：

"type":"FeatureCollection", "features": [

{"type":"Feature","geometry":
{
    "type":"Polygon",
    "coordinates":[[[37……,……],……,[……,……]]]},
    "properties":{
    "BSM":……,"YSDM":"……","TBYBH":"","TBBH":"……","DLBM":"022","DLMC":"茶园","QSXZ":"30","QSDWDM":"……",
    "QSDWMC":"","ZLDWDM":"……","ZLDWMC":"某某村","GDLX":"","KCLX":"","KCDLBM":"","TKXS":0,"TBMJ":……,
    "XZDWMJ":……,"LXDWMJ":0,"TKMJ":0,"TBDLMJ":……,"PZWH":"","BGJLH":"","BGRQ":"……","DLBZ":"","GDPDJ":"",
    "SHAPE_Leng":……,"SHAPE_Area":……}
}

我想要按照这里面的地类编码把每一个feature用不同的颜色标识出来该怎么做？我现在已生成图像如下

可以，你在数据遍历里面写上color[i],在最外层定义全局变量颜色数组