需要定义有5个 typedef struct { char received_str[UART_CMD_MAX_LENGTH]; int index; }received_cmd_type;类型的结构体的数组,并全部初始化为0怎么定义
时间: 2024-10-09 15:01:55 浏览: 11
你可以使用以下方式来定义一个`received_cmd_type`结构体数组并对其进行初始化:
```c
#define NUM_RECEIVED_CMDS 5 // 定义接收命令的数量
typedef struct {
char received_str[UART_CMD_MAX_LENGTH];
int index;
} received_cmd_type;
// 定义结构体数组并初始化
received_cmd_type received_cmds[NUM_RECEIVED_CMDS] = {
{ [0 ... UART_CMD_MAX_LENGTH - 1] = '\0', // 初始化字符串部分为'\0'
index = 0 }, // 初始化索引为0
{ [0 ... UART_CMD_MAX_LENGTH - 1] = '\0', // 对于其他元素也做同样的处理
index = 0 },
{ [0 ... UART_CMD_MAX_LENGTH - 1] = '\0',
index = 0 },
{ [0 ... UART_CMD_MAX_LENGTH - 1] = '\0',
index = 0 },
{ [0 ... UART_CMD_MAX_LENGTH - 1] = '\0',
index = 0 }
};
```
这里,我们创建了一个包含5个元素的`received_cmd_type`数组,并通过初始化每个元素的`received_str`部分设置为零长度字符串(即'\0'),`index`字段设置为0。请注意,数组下标从0开始,所以数组的第一个元素对应的是`received_cmds[0]`。
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