(B) c ++ entry - you really are in the self-programming? - Do not allow the use of incomplete type = "Missing header file

In use today in the array, make the following statement:

array <float, 3> runRecords; // been Hint: do not allow the use of incomplete type

  Just Getting c ++, for a lot of error, really do not understand what this means, look at the front of the book content, only to find, to use array class, you must include the header file #include <array>.

For the array of this knowledge, it is certain that he was of a read. Most of us adults in the process of self-study, but also often have this illusion: a = learned to read. That is to take such a course ( red arrow ):

 

The second step is often less in the figure: that is not actually used to test whether they "really understand" and just feel inside my heart, "read the" only. However, their actual use of the process found out that they will not use; Or use the time they find that they ignore what the details.

  Self-study, read the not equal to learn.

Guess you like

Origin www.cnblogs.com/liangxiarong/p/12105361.html