短信收发测试程序。程序通过手机发送短信给自己，然后启动接收程序。接收后，计算从发送成功到接收成功的时间。利用本程序可以通过电脑的超级终端来测试短信中心的工作效率。-Message to send and receive test procedure. Procedures through the mobile phone to send text messages to their own, and then start to receive the procedure. Reception after the success of the calculation from the sending to the receiving time success. This procedure can make use of the computer