我在stClass創建數據庫,我想在其他類(ndClass)中使用相同的數據庫。 Android的工作室想讓所有靜態的,所以我做到了,但我無法解析cannot be referenced from a static field stClass: public static Base db= new Base(this,null,null,0);// error in "this"
public
我有一個類如下: class Foo : PropertyChangedBase {
private int _property;
public int Property {
get { return _property; }
set { OnAssignPropertyChanged("Property",() => _property, value
我有執行DB查詢sequelize實例方法: getPropertyDays() {
const queryString = `
SELECT
state
FROM property_days
WHERE
DATE(day) = CURDATE() AND
property_id = :propertyId;`;