std::basic_string

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics的图书馆

输入/输出库

本地化库

正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

字符串库

null结尾的字符串 Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

字节的字符串

多字节字符串

宽字符串

类 Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string

char_traits

 

std::basic_string

成员函数 Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::basic_string

basic_string::operator=

basic_string::assign

basic_string::get_allocator

元素的访问 Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::at

basic_string::operator[]

basic_string::front （C++11）

basic_string::back （C++11）

basic_string::data

basic_string::c_str

迭代器 Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::begin basic_string::cbegin （C++11）

basic_string::end basic_string::cend （C++11）

basic_string::rbegin basic_string::crbegin （C++11）

basic_string::rend basic_string::crend （C++11）

容量 Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::empty

basic_string::size

basic_string::length

basic_string::max_size

basic_string::reserve

basic_string::capacity

basic_string::shrink_to_fit （C++11）

操作 Original: Operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::clear

basic_string::insert

basic_string::erase

basic_string::push_back

basic_string::pop_back （C++11）

basic_string::append

basic_string::operator+=

basic_string::compare

basic_string::replace

basic_string::substr

basic_string::copy

basic_string::resize

basic_string::swap

搜索 Original: Search The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::find

basic_string::rfind

basic_string::find_first_of

basic_string::find_first_not_of

basic_string::find_last_of

basic_string::find_last_not_of

常量 Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string::npos

非成员函数 Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

operator+

operator== operator!= operator< operator> operator<= operator>=

swap(std::basic_string)

operator<< operator>>

getline

stoi stol stoll （C++11） （C++11） （C++11）

stoul stoull （C++11） （C++11）

stof stod stold （C++11） （C++11） （C++11）

to_string （C++11）

to_wstring （C++11）

Helper类 Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

hash<std::string> hash<std::wstring> hash<std::u32string> hash<std::u16string> （C++11）

 

Defined in header <string>
template<     class CharT,     class Traits = std::char_traits<CharT>,     class Allocator = std::allocator<CharT> > class basic_string;

类模板basic_string存储和处理序列的字符对象（即对象的专业化std::char_traits或兼容的特性类）.

Original:

The class template basic_string stores and manipulates sequences of char-like objects (that is, objects for which a specialization of std::char_traits or compatible traits class is provided).

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

元素的basic_string中连续存储的，也就是说，对于一个basic_strings，&*(s.begin() + n) == &*s.begin() + n[0, s.size())任何中的n，或者，等价地，一个指针到s[0]可以传递给预期一个charT[]阵列的第一个元素的指针的函数。 （C++11 起）

Original:

The elements of a basic_string are stored contiguously, that is, for a basic_string s, &*(s.begin() + n) == &*s.begin() + n for any n in [0, s.size()), or, equivalently, a pointer to s[0] can be passed to functions that expect a pointer to the first element of a charT[] array. （C++11 起）

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

一些常见的字符类型专业提供：

Original:

Several specializations for common character types are provided:

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Defined in header <string>
类型 Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
std::string	std::basic_string<char>
std::wstring	std::basic_string<wchar_t>
std::u16string	std::basic_string<char16_t>
std::u32string	std::basic_string<char32_t>

会员类型

会员类型 Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition
traits_type	Traits
value_type	Traits::char_type
allocator_type	Allocator
size_type	无符号整数类型（通常是size_t） Original: Unsigned integral type (usually size_t) The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
difference_type	Signed integer type (usually ptrdiff_t)
reference	Allocator::reference （至 C++11） value_type& （C++11 起）
const_reference	Allocator::const_reference （至 C++11） const value_type& （C++11 起）
pointer	Allocator::pointer （至 C++11） std::allocator_traits<Allocator>::pointer （C++11 起）
const_pointer	Allocator::const_pointer （至 C++11） std::allocator_traits<Allocator>::const_pointer （C++11 起）
iterator	RandomAccessIterator
const_iterator	恒随机访问迭代器 Original: Constant random access iterator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
reverse_iterator	std::reverse_iterator<iterator>
const_reverse_iterator	std::reverse_iterator<const_iterator>

成员函数

(constructor)	构建了一个basic_string Original: constructs a basic_string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
operator=	指定的字符串值 Original: assigns values to the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
assign	将字符分配给一个字符串 Original: assign characters to a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
get_allocator	返回的关联分配器 Original: returns the associated allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
元素的访问 Original: Element access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
at	访问指定的字符的边界检查 Original: access specified character with bounds checking The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
operator[]	访问指定的字符 Original: access specified character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
front （C++11）	访问的第一个字符 Original: accesses the first character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
back （C++11）	访问的最后一个字符 Original: accesses the last character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
data	返回一个指针，指向一个字符串的第一个字符 Original: returns a pointer to the first character of a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
c_str	返回一个不可修改的标准C字符数组版本的字符串 Original: returns a non-modifiable standard C character array version of the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
迭代器 Original: Iterators The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
begin cbegin （C++11）	返回一个迭代的开始 Original: returns an iterator to the beginning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
end cend （C++11）	返回一个迭代的结束 Original: returns an iterator to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
rbegin crbegin （C++11）	返回一个反向迭代的开始 Original: returns a reverse iterator to the beginning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
rend crend （C++11）	返回一个反向迭代结束 Original: returns a reverse iterator to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
容量 Original: Capacity The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
empty	检查字符串是否为空 Original: checks whether the string is empty The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
size length	returns the number of characters （公共成员函数）
max_size	返回的最大字符数 Original: returns the maximum number of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
reserve	储备存储 Original: reserves storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
capacity	返回数字的字符，可以保持在当前分配的存储空间 Original: returns the number of characters that can be held in currently allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
shrink_to_fit （C++11）	通过释放未使用的内存减少了内存的使用情况 Original: reduces memory usage by freeing unused memory The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
操作 Original: Operations The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
clear	清除其内容 Original: clears the contents The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
insert	插入字符 Original: inserts characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
erase	removes characters （公共成员函数）
push_back	添加一个字符的结束 Original: appends a character to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
pop_back （C++11）	删除最后一个字符 Original: removes the last character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
append	追加到结束的字符 Original: appends characters to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
operator+=	追加到结束的字符 Original: appends characters to the end The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
compare	比较两个字符串 Original: compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
replace	替换出现的每一个指定的字符 Original: replaces every occurrence of specified characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
substr	返回一个子字符串 Original: returns a substring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
copy	副本字符 Original: copies characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
resize	改变存储的字符数 Original: changes the number of characters stored The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
swap	交换的内容 Original: swaps the contents The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
搜索 Original: Search The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
find	找到字符串中的字符 Original: find characters in the string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
rfind	找到一个子字符串最后一次出现的 Original: find the last occurrence of a substring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
find_first_of	第一次出现的字符 Original: find first occurrence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
find_first_not_of	找到第一个没有的字符 Original: find first absence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
find_last_of	最后一次出现的字符 Original: find last occurrence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
find_last_not_of	找到最后没有的字符 Original: find last absence of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共成员函数）
常量 Original: Constants The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
npos [静态的] </ SPAN></div></div>	特殊的价值。的确切含义取决于具体情况 Original: special value. The exact meaning depends on the context The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （公共静态成员常量）

非成员函数

operator+	连接两个字符串或一个字符串和一个字符 Original: concatenates two strings or a string and a char The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数模板）
operator== operator!= operator< operator> operator<= operator>=	按字典顺序比较两个字符串 Original: lexicographically compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数模板）
std::swap(std::basic_string)	专业的std::swap算法 Original: specializes the std::swap algorithm The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数模板）
输入/输出 Original: Input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
operator<< operator>>	执行流I / O字符串 Original: performs stream I/O on strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数模板）
getline	读取数据的I / O流成一个字符串 Original: read data from an I/O stream into a string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
数字的转换 Original: Numeric conversions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
stoi stol stoll （C++11） （C++11） （C++11）	将字符串转换为一个有符号整数 Original: converts a string to an signed integer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
stoul stoull （C++11） （C++11）	将字符串转换为无符号整数 Original: converts a string to an unsigned integer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
stof stod stold （C++11） （C++11） （C++11）	将字符串转换为浮点值 Original: converts a string to an floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
to_string （C++11）	到string转换为整数或浮点值 Original: converts an integral or floating point value to string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
to_wstring （C++11）	到wstring转换为整数或浮点值 Original: converts an integral or floating point value to wstring The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）

Helper类

std::hash<std::string> std::hash<std::u16string> std::hash<std::u32string> std::hash<std::wstring> （C++11） （C++11） （C++11） （C++11）	字符串哈希支持 Original: hash support for strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （类模板专业化）