The difference between C string and C + + string __c++

In the C language, strings are treated as an array of characters. That is, a C string is a char arrary[max_size]; an array of characters. The string in C + + is string class, which declares the form string strobject. variable is an object. It's just that he is a string class provided by the C + + standard library that implements the same effects as a user-defined class. The C string string can be in string array char array[max_size]; with the string variable char *p; Two ways to store. Ends the symbol with ' I ' as a string. Strlen is the string Terminator ' "," and sizeof is in the character array and character variable operation result is different, cause the principle is different.
STRCMP,STRNCMP, the connection uses strcat, cannot str1+str2, strncat,strcpy, stncpy; STRCHR (STR1, ch); Find the first occurrence of CH in str1, return the pointer variable and C + + string is a class and is an object. The Terminator is NPOs, or-1, and this is mostly the case when you use a member function of C + + string without specifying the number of characters.
+ replaces the strcat length and size with the strlen
Functions such as append, compare, Substr,find, find_firt_of can be directly = without strncpy. Insert, replace, at, Erase, clear, swap, and the implementation of the iterator function.
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