Change initialization of variable by using method

src/coex/assets_managing_team.rs

@@ -399,16 +399,7 @@ pub async fn get_unit_trade_usdt() -> Decimal {
 }
 
 pub async fn select_asset_manage_announcement() -> AssetInfo {
-    let mut asset_info = AssetInfo {
-        initial_usdt: Decimal::new(0, 8),
-        current_total_usdt: Decimal::new(0, 8),
-        profit: Decimal::new(0, 8),
-        realtime_expected_total_usdt: 0.0,
-        realtime_profit: 0.0,
-        available_usdt: Decimal::new(0, 8),
-        is_tradable: 0,
-        unit_trade_usdt: Decimal::new(0, 8),
-    };
+    let mut asset_info = AssetInfo::new();
 
     let table_name = String::from("asset_manage_announcement");
     let columns = String::from("*");