英汉 英英 网络释义 key 显示所有例句 n. — see also low-key 开锁工具tool for lock 1. 钥匙a specially shaped piece of metal used for locking a door, starting a car, etc. 最重要的事most important thing 2. [ususing] 关键;要诀a thing that makes you able to understand or achieve sth ...
Returns true if no modifiers keys are pressed according to the specified meta state. For the purposes of this function, #KEYCODE_CAPS_LOCK, #KEYCODE_SCROLL_LOCK, and #KEYCODE_NUM_LOCK are not considered modifier keys. Consequently, this function ignores #META_CAPS_LOCK_ON, #META_SCROLL_LOCK...
Returns the only element of a sequence that satisfies a specified condition, and throws an exception if more than one such element exists. Single<TSource>(IEnumerable<TSource>) Returns the only element of a sequence, and throws an exception if there is not exactly one element in the sequence...
A SortedDictionary<TKey,TValue> can support multiple readers concurrently, as long as the collection is not modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure. To guarantee thread safety during enumeration, you can lock the collection during the entire ...
If this is not specified, anyone can send FTs for the specific drop. pub sender_id: Option<AccountId>, /// How many FTs should the contract send *each time* a key is used. pub balance_per_use: U128, } By specifying this information, the drop is locked into only accepting FTs ...
对于InnoDB引擎的表，不建议你们使用此类组合模式做主键，性能会很差，建议数值类型的字段作主键，外加 ...
Intuitive DX: Decorate a class or method to bind it to specified keys. Scoping: Designate the scope of your bindings by decorating/wrapping components. Only those components and their children will receive the designated key events, and then only when they appear to be active. ...
A SortedDictionary<TKey,TValue> can support multiple readers concurrently, as long as the collection is not modified. Even so, enumerating through a collection is intrinsically not a thread-safe procedure. To guarantee thread safety during enumeration, you can lock the collection during the entire ...
(struct device *dev);const char *name; /* input device name */};/*key/button plaform_device data配置参数,该结构作为platform data注册到platform设备总线*/struct gpio_keys_drvdata {const struct gpio_keys_platform_data *pdata;struct input_dev *input;struct mutex disable_lock;struct gpio_...
lock_option: LOCK [=] {DEFAULT | NONE | SHARED | EXCLUSIVE} CREATE INDEX不能用来创建PRIMARY KEY; InnoDB支持虚拟列的二级索引; key_part规范可以以ASC或DESC结尾,指定索引值是以升序还是降序存储。如果没有给出顺序指定符,默认为升序; HASH索引不允许使用ASC和DESC; ...