c++涓璫string杞琩ouble鎬庝箞瀹炵幇
瑕佸皢cstring杞崲涓篸ouble锛屽彲浠ヤ娇鐢╯tod鍑芥暟锛岃鍑芥暟鍙互灏嗗瓧绗︿覆杞崲涓篸ouble绫诲瀷銆傜ず渚嬩唬鐮佸涓嬶細
#include <iostream>
#include <string>
int main() {
const char* str = "3.14";
double d = std::stod(str);
std::cout << "Double value: " << d << std::endl;
return 0;
}
鍦ㄤ笂闈㈢殑绀轰緥涓紝鎴戜滑灏嗗瓧绗︿覆"3.14"杞崲涓篸ouble绫诲瀷鐨勫彉閲廳锛屽苟杈撳嚭缁撴灉銆傞渶瑕佸寘鍚ご鏂囦欢