你好，
我为了获取连接状态，定义一个变量，该怎么读取这个变量，我想着用特征值2直接读，但是会提示重复定义，因为多次给这个变量赋值了，
我该怎么做呢，连接状态分为0和1，比如gLinkStatus=0，该怎么读出来
谢谢
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