golang 百分比抽奖几率

func GetResult() string {
   data := map[string]float64{}
   data["富"] = 33.00
   data["强"] = 30.00
   data["中"] = 15.00
   data["国"] = 7.00
   data["振"] = 6.00
   data["兴"] = 5.00
   data["实"] = 3.99
   data["体"] = 0.01
   var leng = 100.00//默认都是100即为100%
   for c, i := range data {
      for s := 0; s < 100; s++ {
         rand.Intn(10)
         resul:=100*rand.Float64()
         random := cast.ToFloat64(resul)
         if random < i {
            return c
         } else {
            leng -= i
         }
      }

   }
   return "错误"

}