C语言之 replace

本文主要针对c++中常用replace函数用法给出样例程序

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. line = line.replace(line.find(“@”), 1, “”);
5. cout << line << endl;
6. return 0;
7. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. line = line.replace(line.begin(), line.begin()+6, “”);
5. cout << line << endl;
6. return 0;
7. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. string substr = “12345”;
5. line = line.replace(0, 5, substr, substr.find(“1”), 3);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char* str = “12345”;
5. line = line.replace(0, 5, str);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char* str = “12345”;
5. line = line.replace(line.begin(), line.begin()+9, str);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char* str = “12345”;
5. line = line.replace(0, 9, str, 4);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char* str = “12345”;
5. line = line.replace(line.begin(), line.begin()+9, str, 4);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char c = ‘1’;
5. line = line.replace(0, 9, 3, c);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

1. int main()
2. {
3. string line = “this@ is@ a test string!”;
4. char c = ‘1’;
5. line = line.replace(line.begin(), line.begin()+9, 3, c);
6. cout << line << endl;
7. return 0;
8. }

运行结果：

注：所有使用迭代器类型的参数不限于string类型，可以为vector、list等其他类型迭代器。