冰块先生的专栏

第一种方法： a = a + b; b = a - b; a = a - b;    printf("a = %d, b = %d/n", a, b); ----------------------------------------------------------------------------第二种方法： swap69(a, b, &a, &b);   

1.下载Borland BCC5.5，解压并安装   在C:/Borland/BCC55/Bin下，建立bcc32.cfg，键入：-I"C:/Borland/BCC55/Include"                                                                               -L"C:/Borland/BCC55/Lib"

自定义一个函数：string trim(string &str) {    str.erase(0,str.find_first_not_of( ));    str.erase(str.find_last_not_of( )+1,string::npos);    return str;}