- #include <iostream>
- #include <string>
- using namespace std;
-
- int main() {
- string filename = "test1.JPG";
- if (filename .substr(filename .find_last_of(".") + 1) == "JPG") {
- cout << "是.JPG文件" << std::endl;
- filename = filename .substr(0, filename .length() - 4);
- cout << filename << endl;
- } else {
- std::cout << "不是.JPG文件" << std::endl;
- }
- }
-
应输出test1。