DATE，TIME的含义及使用说明

我会带着你远行 2023-02-22 12:24 73阅读 0赞

**–DATE–**，**–TIME–**（注意是双下划线）  
这是两个编译器宏定义，keil里有的，而不是C语言标准库固有的关键字，函数或宏定义。  
用途：用于自动获取编译器编译时的当前时间。  
**–DATE–** \------用于获取当前日期—格式— Jul 03 2020  
**–TIME–** \------ 用于获取当前时间—格式—15：52：54  
![在这里插入图片描述][20200703155447267.png]  
使用说明：  
//获取系统时间  
\#define YEAR ((((**DATE** \[7\] - ‘0’) \* 10 + (**DATE** \[8\] - ‘0’)) \* 10 \\

*  (**DATE** \[9\] - ‘0’)) \* 10 + (**DATE** \[10\] - ‘0’))

\#define MONTH ( **DATE** \[2\] == ‘c’ ? 12 \\

**DATE** \[2\] == ‘n’ ? 1  
**DATE** \[2\] == ‘b’ ? 2 \\

**DATE** \[2\] == ‘r’ ? ( **DATE** \[0\] == ‘M’ ? 3 : 4) \\

**DATE** \[2\] == ‘y’ ? 5 \\

**DATE** \[2\] == ‘n’ ? 6 \\

**DATE** \[2\] == ‘l’ ? 7 \\

**DATE** \[2\] == ‘g’ ? 8 \\

**DATE** \[2\] == ‘p’ ? 9 \\

**DATE** \[2\] == ‘t’ ? 10 \\

**DATE** \[2\] == ‘v’ ? 11)

\#define DAY ((**DATE** \[4\] == ’ ’ ? 0 : **DATE** \[4\] - ‘0’) \* 10 \\

*  (**DATE** \[5\] - ‘0’))

char pDest\[20\];  
strcpy(pDest,\_–DATE–,11);  
if (strcmp(pDest, “Jan”) == 0) stTime.nMonth = 1;  
else if (strcmp(pDest, “Feb”) == 0) stTime.nMonth = 2;  
else if (strcmp(pDest, “Mar”) == 0) stTime.nMonth = 3;  
else if (strcmp(pDest, “Apr”) == 0) stTime.nMonth = 4;  
else if (strcmp(pDest, “May”) == 0) stTime.nMonth = 5;  
else if (strcmp(pDest, “Jun”) == 0) stTime.nMonth = 6;  
else if (strcmp(pDest, “Jul”) == 0) stTime.nMonth = 7;  
else if (strcmp(pDest, “Aug”) == 0) stTime.nMonth = 8;  
else if (strcmp(pDest, “Sep”) == 0) stTime.nMonth = 9;  
else if (strcmp(pDest, “Oct”) == 0) stTime.nMonth = 10;  
else if (strcmp(pDest, “Nov”) == 0) stTime.nMonth = 11;  
else if (strcmp(pDest, “Dec”) == 0) stTime.nMonth = 12;  
else stTime.nMonth = 1;

[20200703155447267.png]: https://img-blog.csdnimg.cn/20200703155447267.png