摘要： #include <iostream>#include <string>#include <list>using namespace std;//三个数相加求低位char add_gw(char a,char b,char c){ return ((a-'0')+(b-'0')+(c-'0'))%10+'0';}//三个数相加求高位char add_sw(char a,char b,char c){ return ((a-'0')+(b-'0')+(c-' 阅读全文