W3School TIY Editor

#include <iostream> #include <cstring> using namespace std; int main() { char myStr[] = "Hello World"; char * myPtr1 = strchr(myStr, 'o'); // 查找第一个'o' char * myPtr2 = strrchr(myStr, 'o'); // 查找最后一个'o' cout << "第一个: " << myPtr1 << "\n"; cout << "最后一个: " << myPtr2 << "\n"; return 0; }