std::basic_string::replace

来自cppreference.com

This page has been machine-translated from the English version of the wiki using Google Translate.

The translation may contain errors and awkward wording. Hover over text to see the original version. You can help to fix errors and improve the translation. For instructions click here.

Click here for the English version of this page

 
C++
 
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）
 
basic_string& replace( size_type pos, size_type count,

                       const basic_string& str );

basic_string& replace( const_iterator first, const_iterator last,

                       const basic_string& str );
 (1)
basic_string& replace( size_type pos, size_type count,

                       const basic_string& str,
                       size_type pos2, size_type count2 );

template< class InputIt >
basic_string& replace( const_iterator first, const_iterator last,

                       InputIt first2, InputIt last2 );
 (2)
basic_string& replace( size_type pos, size_type count,

                       const CharT* cstr, size_type count2 );

basic_string& replace( const_iterator first, const_iterator last,

                       const CharT* cstr, size_type count2 );
 (3)
basic_string& replace( size_type pos, size_type count,

                       const CharT* cstr );

basic_string& replace( const_iterator first, const_iterator last,

                       const CharT* cstr );
 (4)
basic_string& replace( size_type pos, size_type count,

                       size_type count2, CharT ch );

basic_string& replace( const_iterator first, const_iterator last,

                       size_type count2, CharT ch );
 (5)
basic_string& replace( const_iterator first, const_iterator last,
                       std::initializer_list<CharT> ilist );
 (6) （C++11 起）
无论是[pos, pos + count)或[first, last)一个新的字符串表示的字符串替换的部分.
Original:
Replaces the part of the string indicated by either [pos, pos + count) or [first, last) with a new string.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
新的字符串可以是：1
Original:
The new string can be one of:
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
1)
串str
Original:
string str
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
子串[pos2, pos2 + count2)str或字符的范围内[first2, last2)
Original:
substring [pos2, pos2 + count2) of str or characters in the range [first2, last2)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
3)
count2charcters指向的字符串的第一cstr
Original:
first count2 charcters of the character string pointed to by cstr
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
4)
空字符结尾的字符串所指向的cstr
Original:
null-terminated character string pointed to by cstr
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
5)
count2份的性格ch
Original:
count2 copies of character ch
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
6)
在初始化列表中ilist的字符数
Original:
characters in the initializer list ilist
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

目录

[编辑] 参数

pos -
开始，将要被替换的子串
Original:
start of the substring that is going to be replaced
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
count -
的子串的长度，将要被替换
Original:
length of the substring that is going to be replaced
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
first, last -
是将要被替换的字符的范围
Original:
range of characters that is going to be replaced
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
str -
字符串，用于更换
Original:
string to use for replacement
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
pos2 -
开始的子串替换
Original:
start of the substring to replace with
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
count2 -
数目的字符来代替
Original:
number of characters to replace with
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
cstr -
要使用的字符串替换指针
Original:
pointer to the character string to use for replacement
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ch -
更换使用的字符值
Original:
character value to use for replacement
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
first2, last2 -
更换使用的字符范围
Original:
range of characters to use for replacement
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
init -
初始化列表中要使用的字符替换
Original:
initializer list with the characters to use for replacement
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Type requirements
-
InputIt must meet the requirements of InputIterator.

[编辑] 返回值

*this

[编辑] 例外

std::out_of_range if pos > length() or pos2 > str.length()

std::length_error如果结果字符串超过最大可能的字符串长度（std::string::npos - 1）
Original:
std::length_error if the resulting string will exceed maximum possible string length (std::string::npos - 1)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[编辑] 为例

#include <iostream>
#include <string>
 
int main()
{
    std::string str("The quick brown fox jumps over the lazy dog.");
 
    str.replace(10, 5, "red"); // (4)
 
    str.replace(str.begin(), str.begin() + 3, 1, 'A'); // (5)
 
    std::cout << str << '\n';
}

Output: 

A quick red fox jumps over the lazy dog.
来自“http://zh.cppreference.com/mwiki/index.php?title=cpp/string/basic_string/replace&oldid=26300”