basic_string::replace
替换字符串中的元素在指定的位置会受到其他范围或字符副本中的指定字符或字符串或C字符串。
basic_string<CharType, Traits, Allocator>& replace(
size_type _Pos1,
size_type _Num1,
const value_type* _Ptr
);
basic_string<CharType, Traits, Allocator>& replace(
size_type _Pos1,
size_type _Num1,
const basic_string<CharType, Traits, Allocator>& _Str
);
basic_string<CharType, Traits, Allocator>& replace(
size_type _Pos1,
size_type _Num1,
const value_type* _Ptr,
size_type _Num2
);
basic_string<CharType, Traits, Allocator>& replace(
size_type _Pos1,
size_type _Num1,
const basic_string<CharType, Traits, Allocator>& _Str,
size_type _Pos2,
size_type _Num2
);
basic_string<CharType, Traits, Allocator>& replace(
size_type _Pos1,
size_type _Num1,
size_type _Count,
value_type _Ch
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
const value_type* _Ptr
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
const basic_string<CharType, Traits, Allocator>& _Str
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
const value_type* _Ptr,
size_type _Num2
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
size_type _Num2,
value_type _Ch
);
template<class InputIterator>
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
InputIterator _First,
InputIterator _Last
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
const_pointer _First,
const_pointer _Last
);
basic_string<CharType, Traits, Allocator>& replace(
iterator _First0,
iterator _Last0,
const_iterator _First,
const_iterator _Last
);
参数
_Str
是字符的源操作数字符串的字符串。_Pos1
替换开始操作数字符串的索引。_Num1
在操作数字符串将替换的最大字符数。_Pos2
首先复制参数串的索引。_Num2
从参数C字符串将使用的最大字符数。_Ptr
是字符的源操作数字符串的C字符串。_Ch
要复制的字符到操作数字符串。_First0
解决的迭代器在操作数字符串中移除的第一个字符。_Last0
解决的迭代器在操作数字符串中移除的最后一个字符。_First
解决迭代器、const_pointer或的const_iterator在参数串将复制的第一个字符。_Last
解决迭代器、const_pointer或的const_iterator在参数串将复制的最后一个字符。_Count
次数 _Ch 复制到操作数字符串。
返回值
在中进行了替换的操作数字符串。
示例
// basic_string_replace.cpp
// compile with: /EHsc
#include <string>
#include <iostream>
int main( )
{
using namespace std;
// The first two member functions replace
// part of the operand string with
// characters from a parameter string or C-string
string result1a, result1b;
string s1o ( "AAAAAAAA" );
string s1p ( "BBB" );
const char* cs1p = "CCC";
cout << "The operand string s1o is: " << s1o << endl;
cout << "The parameter string s1p is: " << s1p << endl;
cout << "The parameter C-string cs1p is: " << cs1p << endl;
result1a = s1o.replace ( 1 , 3 , s1p );
cout << "The result of s1o.replace ( 1 , 3 , s1p )\n is "
<< "the string: " << result1a << "." << endl;
result1b = s1o.replace ( 5 , 3 , cs1p );
cout << "The result of s1o.replace ( 5 , 3 , cs1p )\n is "
<< "the string: " << result1b << "." << endl;
cout << endl;
// The third & fourth member function replace
// part of the operand string with characters
// form part of a parameter string or C-string
string result2a, result2b;
string s2o ( "AAAAAAAA" );
string s2p ( "BBB" );
const char* cs2p = "CCC";
cout << "The operand string s2o is: " << s2o << endl;
cout << "The parameter string s1p is: " << s2p << endl;
cout << "The parameter C-string cs2p is: " << cs2p << endl;
result2a = s2o.replace ( 1 , 3 , s2p , 1 , 2 );
cout << "The result of s2o.replace (1, 3, s2p, 1, 2)\n is "
<< "the string: " << result2a << "." << endl;
result2b = s2o.replace ( 4 , 3 , cs2p , 1 );
cout << "The result of s2o.replace (4 ,3 ,cs2p)\n is "
<< "the string: " << result2b << "." << endl;
cout << endl;
// The fifth member function replaces
// part of the operand string with characters
string result3a;
string s3o ( "AAAAAAAA" );
char ch3p = 'C';
cout << "The operand string s3o is: " << s3o << endl;
cout << "The parameter character c1p is: " << ch3p << endl;
result3a = s3o.replace ( 1 , 3 , 4 , ch3p );
cout << "The result of s3o.replace(1, 3, 4, ch3p)\n is "
<< "the string: " << result3a << "." << endl;
cout << endl;
// The sixth & seventh member functions replace
// part of the operand string, delineated with iterators,
// with a parameter string or C-string
string s4o ( "AAAAAAAA" );
string s4p ( "BBB" );
const char* cs4p = "CCC";
cout << "The operand string s4o is: " << s4o << endl;
cout << "The parameter string s4p is: " << s4p << endl;
cout << "The parameter C-string cs4p is: " << cs4p << endl;
basic_string<char>::iterator IterF0, IterL0;
IterF0 = s4o.begin ( );
IterL0 = s4o.begin ( ) + 3;
string result4a, result4b;
result4a = s4o.replace ( IterF0 , IterL0 , s4p );
cout << "The result of s1o.replace (IterF0, IterL0, s4p)\n is "
<< "the string: " << result4a << "." << endl;
result4b = s4o.replace ( IterF0 , IterL0 , cs4p );
cout << "The result of s4o.replace (IterF0, IterL0, cs4p)\n is "
<< "the string: " << result4b << "." << endl;
cout << endl;
// The 8th member function replaces
// part of the operand string delineated with iterators
// with a number of characters from a parameter C-string
string s5o ( "AAAAAAAF" );
const char* cs5p = "CCCBB";
cout << "The operand string s5o is: " << s5o << endl;
cout << "The parameter C-string cs5p is: " << cs5p << endl;
basic_string<char>::iterator IterF1, IterL1;
IterF1 = s5o.begin ( );
IterL1 = s5o.begin ( ) + 4;
string result5a;
result5a = s5o.replace ( IterF1 , IterL1 , cs5p , 4 );
cout << "The result of s5o.replace (IterF1, IterL1, cs4p ,4)\n is "
<< "the string: " << result5a << "." << endl;
cout << endl;
// The 9th member function replaces
// part of the operand string delineated with iterators
// with specified characters
string s6o ( "AAAAAAAG" );
char ch6p = 'q';
cout << "The operand string s6o is: " << s6o << endl;
cout << "The parameter character ch6p is: " << ch6p << endl;
basic_string<char>::iterator IterF2, IterL2;
IterF2 = s6o.begin ( );
IterL2 = s6o.begin ( ) + 3;
string result6a;
result6a = s6o.replace ( IterF2 , IterL2 , 4 , ch6p );
cout << "The result of s6o.replace (IterF1, IterL1, 4, ch6p)\n is "
<< "the string: " << result6a << "." << endl;
cout << endl;
// The 10th member function replaces
// part of the operand string delineated with iterators
// with part of a parameter string delineated with iterators
string s7o ( "OOOOOOO" );
string s7p ( "PPPP" );
cout << "The operand string s7o is: " << s7o << endl;
cout << "The parameter string s7p is: " << s7p << endl;
basic_string<char>::iterator IterF3, IterL3, IterF4, IterL4;
IterF3 = s7o.begin ( ) + 1;
IterL3 = s7o.begin ( ) + 3;
IterF4 = s7p.begin ( );
IterL4 = s7p.begin ( ) + 2;
string result7a;
result7a = s7o.replace ( IterF3 , IterL3 , IterF4 , IterL4 );
cout << "The result of s7o.replace (IterF3 ,IterL3 ,IterF4 ,IterL4)\n is "
<< "the string: " << result7a << "." << endl;
cout << endl;
}
要求
标头: <string>
命名空间: std