| 1. | Functions can have default arguments , as shown for the value argument of the
函数可以有默认参数，如 |
| 2. | If no texture is set for this stage , the default argument is
如果没有设置此贴图层的纹理，则默认参数是 |
| 3. | Array unless default arguments are defined on the member
数组中的参数个数（除非在成员上定义了默认参数） 。 |
| 4. | Accessing default argument values
访问默认参数值 |
| 5. | The default argument of
的默认参数是 |
| 6. | Default arguments on functions and methods greatly reduce the number of overloaded methods you need to create
函数和方法的默认参数极大地减少了需要创建的重载方法数量。 |
| 7. | The conventional way to have a reference refer to no - object is to provide an explicit singleton representing by convention a null object which often serves as a default argument to a function parameter
（让引用引用空对象的常规方式是提供显式的单一实例，按约定，该实例表示一个经常充当函数参数的默认变量的空对象） 。 |
