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| USART_InitStructure.USART_BaudRate = 9600;
 USART_InitStructure.USART_WordLength = USART_WordLength_8b;
 USART_InitStructure.USART_StopBits = USART_StopBits_2;
 USART_InitStructure.USART_Parity =USART_Parity_Even;  //USART_Parity_No;
 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
 USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
 USART_Init(USART1, &USART_InitStructure);
 
 这样设置了,用串口助手测试不对。哪里有问题?
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