编写程序,删除字符串中的指定字符，字符串和要删除的字符由键盘输入。编写主函数和函数stoi()。主函数进行输入、输出和函数调用，stoi()的功能是将一数字串转化为对应的整数。-Write a program that deletes the specified characters in the string, the string, and the characters to be deleted　the keyboard. Write the main function and function stoi (). The main function of the input, output and function call, stoi () function is a number of strings into the corresponding integer. Including experimental report