feat(Go-Tool)：2021/03/18：新增超过半数数字系列算法题，新增出现次数不同的数字系列算法题

algorithm/numberList/NumberCount/OnlyOneNumberShowOnce_test.go

@@ -0,0 +1,19 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2021/3/16 17:52
+ *  @Description：
+ */
+
+package NumberCount
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestOnlyOneNumberShowOnce(t *testing.T) {
+	fmt.Println(OnlyOneNumberShowOnce([]int{1, 2, 3, 2, 3, 4, 4}))        //1
+	fmt.Println(OnlyOneNumberShowOnce([]int{1, 2, 3, 2, 3, 4, 4, 1, 5}))  //5
+	fmt.Println(OnlyOneNumberShowOnce([]int{1, 2, 3, 2, 3, 4, 4, 1, 10})) //10
+	fmt.Println(OnlyOneNumberShowOnce([]int{2, 2, 2, 2, 1, 3, 3, 3, 3}))  //1
+}