#define PLUGIN_CONTINUE        0    /* Results returned by public functions */
#define PLUGIN_HANDLED        1    /* stop other plugins */
#define PLUGIN_HANDLED_MAIN    2    /* to use in client_command(), continue all plugins but stop the command */

#define FMRES_IGNORED    1    // Calls target function, returns normal value
#define FMRES_HANDLED    2    // Tells metamod you did something, still calls target function and returns normal value
#define FMRES_OVERRIDE    3    // Supposed to still call the target function but return your value instead
                            // however this does not work properly with metamod; use supercede instead.
#define FMRES_SUPERCEDE    4    // Block the target call, and use your return value (if applicable)

#define HAM_IGNORED        1    /* Calls target function, returns normal value */
#define HAM_HANDLED        2    /* Tells the module you did something, still calls target function and returns normal value */
#define HAM_OVERRIDE    3    /* Still calls the target function, but returns whatever is set with SetHamReturn*() */
#define HAM_SUPERCEDE    4    /* Block the target call, and use your return value (if applicable) (Set with SetHamReturn*()) */

PLUGIN_CONTINUE
FMRES_IGNORED
HAM_IGNORED

PLUGIN_HANDLED
FMRES_SUPERCEDE
HAM_SUPERCEDE

public I_am_forward(id)
{
    if (is_user_alive(id))
    {
        client_print(id, print_chat, "a7811311622")
    }
}

public I_am_forward_too(id)
{
    if (!is_user_alive(id))
        retuen FMRES_IGNORED
    
    client_print(id, print_chat, "a7811311622")
    
    retuen FMRES_IGNORED // 如果这个forward里面有回传值(retuen XXX)就一定要加这行
}

public I_am_forward_too(id)
{

    if (is_user_alive(id))
        retuen FMRES_IGNORED // 当程式跑到这里…下面的内容都会被无视…
    
    if (!is_user_alive(id))
        retuen FMRES_IGNORED // 既然上面的条件说「如果是死人」…那你下面内容何必管他死活？
    
    client_print(id, print_chat, "a7811311622") // 所以这句话不会显示
    
    retuen FMRES_IGNORED
}

public I_am_forward(id)
{
    if (!is_user_alive(id))
    {
        // 随便写…
    }
    if (is_user_alive(id))
    {
        client_print(id, print_chat, "a7811311622") // 上面的死人部分和这边无关…这句话正常显示…
    }
}

public fw_TakeDamage(victim, inflictor, attacker, Float:damage, damage_type)
{
    if (is_user_alive(id))
        return HAM_SUPERCEDE
    
    return HAM_IGNORED
}

    switch (num)
    {
        case 1: // num == 1 return XXX
        case 2: // num == 2 return XXX
        case 3: // num == 3 return XXX
        default: // num != 1 && num != 2 && num != 3 return XXX
    }