📜  c++代码示例中的子字符串

📅  最后修改于: 2022-03-11 14:44:50.221000             🧑  作者: Mango

代码示例3
string sub_string=main_string.substr(first_pos_of_the_substring_from_main_string,length_of_the_substring_from_main_string_starting_from_the_first_position