String is a class that exists specifically for string manipulation in C ++. String encapsulates char *, and manage this string, can be understood as a char * type container.
Compared
Both string and char * can represent a string.
For char *, it is a pointer to the first address of the character array. After declaring a string, if you want to manipulate it, you must introduce the C-style string header file include <string.h> . The <string.h> header file encapsulates strlen , strcat , strcpy , strcmp and other functions. Use them to perform related operations on the declared string.
String is a class that encapsulates the above content together, making string operations more flexible, more ways, and more reasonable management.
When using the string class, we need not consider the allocation and deallocation of memory , but also do not have to worry about cross-border collapse , basically everywhere to consider their predecessors have done, we just use on the line. This is a big advantage compared to char * used with string.h .
