| 1. | Is popped from the stack and the conversion operation is attempted
，然后尝试执行转换操作。 |
| 2. | Method and provide a conversion operation that sets the appropriate
方法，并提供可为开关设置合适的 |
| 3. | Introduces a type conversion operation that does not throw an exception
引入不引发异常的类型转换操作。 |
| 4. | Value is popped from the stack and the conversion operation is attempted
如果转换成功，则将结果值推送到堆栈上。 |
| 5. | Class , and which is used to pass a string to the conversion operation
类的类型表示，用于将字符串传递给转换操作。 |
| 6. | Introduces a type conversion operation based on inheritance or implementation
介绍基于继承或实现的类型转换操作。 |
| 7. | Module contains the procedures used to perform various conversion operations
模块包含用于执行各种转换操作的过程。 |
| 8. | Class , that can pass a string to the conversion operation
类派生的类型表示） ，这样，就可以将字符串传递给转换操作。 |
| 9. | If a conversion operation can cause exceptions or lose information , you should mark it
如果转换操作可能导致异常或丢失信息，则应将其标记为 |
| 10. | That specifies the start of the substring . the conversion operation continues to the end of
的从零开始的偏移量，用于指定子字符串的起始位置。 |
