filename rename And unit test cover

mapUtil/map_exists.go

@@ -0,0 +1,17 @@
+package mapUtil
+
+// MapValueExists 判断map中的value是否存在
+func MapValueExists(m map[string]interface{}, value interface{}) bool {
+	for _, v := range m {
+		if v == value {
+			return true
+		}
+	}
+	return false
+}
+
+// MapKeyExists 判断map中的key是否存在
+func MapKeyExists(m map[string]interface{}, key string) bool {
+	_, exists := m[key]
+	return exists
+}