The corresponding field in the business object is automatically set to null.
业务对象中的对应字段将自动设置为空。
This will return null only when focus has been set to "no component."
这样,只有当焦点被设置成“无组件(no component)”时才会返回空。
If you set link to null, a new database connection is created.
如果将link设为null,就会创建一个新的数据库连接。
You want to set the target buffer to NULL on failure.
一旦字符串处理函数失败,就把目标缓冲区设成NULL。
You want to set the target buffer to NULL on failure.
一旦字符串处理函数失败,就把目标缓冲区设成NULL。
应用推荐