C ++ STL help document-string

String function list

Function Name	Description
Begin	Obtains the iterator starting with the string.
End	Obtains the iterator pointing to the end of the string.
Rbegin	Obtain the iterator pointing to the beginning of the reverse string.
Rend	Obtains the iterator pointing to the end of the reverse string.
Size	Returns the string size.
Length	Same as the size function
Max_size	Possible maximum size of a string
Capacity	Possible string size without re-allocating memory
Empty	Judge whether it is empty
OPERATOR []	Returns the number of elements, which is equivalent to an array.
C_str	Obtain the C-style const char * string
Data	Obtain the string content address
Operator =	Value assignment operator
Reserve	Reserved space
Swap	Exchange Functions
Insert	Insert characters
Append	Append character
Push_back	Append character
Operator + =	+ = Operator
Erase	Delete string
Clear	Clear all content in the character container
Resize	Re-allocate space
Assign	Same as the value assignment operator
Replace	Substitution
Copy	String to Space
Find	Search
Rfind	Reverse Lookup
Find_first_of	Returns the first position if any character in the substring is found.
Find_first_not_of	Returns the first position if any character in the substring is not included.
Find_last_of	Searches for any character in the substring and returns the last position
Find_last_not_of	Returns the last position if any character in the substring is not included.
Substr	Obtain the string
Compare	Comparison string
Operator +	String Link
Operator =	Determine if it is equal
Operator! =	Judge whether it is not equal
Operator <	Judge whether it is less
Operator>	Read a string from the input stream
Operator <	String writing to the output stream
Getline	Read a row from the input stream