이 함수는 문자 위치 pos에서 시작하고 len 문자에 걸쳐 있는 문자열 부분을 대체합니다.
통사론
두 개의 문자열 str1과 str2를 고려하십시오. 구문은 다음과 같습니다.
str1.replace(pos,len,str2);
매개변수
반환 값
이 함수는 어떤 값도 반환하지 않습니다.
실시예 1
첫 번째 예에서는 위치와 길이를 매개변수로 사용하여 주어진 문자열을 바꾸는 방법을 보여줍니다.
#include using namespace std; int main() { string str1 = 'This is C language'; string str2 = 'C++'; cout << 'Before replacement, string is :'<<str1<<' '; str1.replace(8,1,str2); cout << 'after replacement, string is :'<<str1<<' '; return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement , string is This is C language After replacement, string is This is C++ language </pre> <h2>Example 2</h2> <p>Second example shows how to replace given string using position and length of the string which is to be copied in another string object.</p> <pre> #include using namespace std; int main() { string str1 ='This is C language' string str3= 'java language'; cout <<'before replacement, string is '<<str1<<' '; str1.replace(8,1,str3,0,4); cout<<'after replacement,string return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement, String is This is C language After replacement, String is This is java language </pre> <h2>Example 3</h2> <p>Third example shows how to replace the string by using string and number of characters to be copied as parameters.</p> <pre> #include using namespace std; int main() { string str1='This is C language'; cout<<'before replacement,string is'<<str1<<' '; str1.replace(8,1,'c##',2); cout<<'after is'<<str1; return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement,string is This is C language After replacement,string is This is C# language </pre> <br></'before></pre></'before></pre></str1<<' ';>
실시예 2
두 번째 예는 다른 문자열 객체에 복사할 문자열의 위치와 길이를 사용하여 주어진 문자열을 바꾸는 방법을 보여줍니다.
#include using namespace std; int main() { string str1 ='This is C language' string str3= 'java language'; cout <<\'before replacement, string is \'<<str1<<\' \'; str1.replace(8,1,str3,0,4); cout<<\'after replacement,string return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement, String is This is C language After replacement, String is This is java language </pre> <h2>Example 3</h2> <p>Third example shows how to replace the string by using string and number of characters to be copied as parameters.</p> <pre> #include using namespace std; int main() { string str1='This is C language'; cout<<\'before replacement,string is\'<<str1<<\' \'; str1.replace(8,1,\'c##\',2); cout<<\'after is\'<<str1; return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement,string is This is C language After replacement,string is This is C# language </pre> <br></\'before></pre></\'before>
실시예 3
세 번째 예에서는 복사할 문자열과 문자 수를 매개변수로 사용하여 문자열을 바꾸는 방법을 보여줍니다.
#include using namespace std; int main() { string str1='This is C language'; cout<<\'before replacement,string is\'<<str1<<\' \'; str1.replace(8,1,\'c##\',2); cout<<\'after is\'<<str1; return 0; } < pre> <p> <strong>Output:</strong> </p> <pre> Before replacement,string is This is C language After replacement,string is This is C# language </pre> <br></\'before>
\'before>\'before>