刚开始看这个，求求帮忙回答
（1）如下程序函数strtoul（） 的作用
（2）iInput == 1，iInput == 2 ，iInput == 3 的值 是从串口调试终端输入的吗
else
{
iInput = (int)strtoul(acCmdStore,0,10);
if(iInput == 1)
{
UART_PRINT("Run iperf command \"iperf.exe -s -i 1\" and press "
"Enter\n\r");
//
// Wait to receive a character over UART
//
MAP_UARTCharGet(CONSOLE);
UART_PRINT("Sending TCP packets...\n\r");
// Before proceeding, please make sure to have a server waiting on
// PORT_NUM
lRetVal = BsdTcpClient(g_uiPortNum);
}
else if(iInput == 2)
{
UART_PRINT("Press Enter and run iperf command \"iperf.exe -c "
"%d.%d.%d.%d -i 1 -t 100000\" \n\r",
SL_IPV4_BYTE(g_ulIpAddr,3),
SL_IPV4_BYTE(g_ulIpAddr,2),
SL_IPV4_BYTE(g_ulIpAddr,1),
SL_IPV4_BYTE(g_ulIpAddr,0));
//
// Wait to receive a character over UART
//
MAP_UARTCharGet(CONSOLE);
UART_PRINT("Receiving TCP packets...\n\r");
// After calling this function, you can start sending data to
// CC3200 IP address on PORT_NUM
lRetVal = BsdTcpServer(g_uiPortNum);
}
else if(iInput == 3)
