优化这段代码 int line = 9; int page = 0; Lcd_DispClear(); memset(szVal, 0, sizeof(szVal)); if (netid == 0) sprintf(szVal, "%s %d", "网口", netid+2); else sprintf(szVal, "%s %d", "网口", netid); LCD_DisString(0, 0, szVal); LCD_DisString(0, 10, (char *)gcszLcdParam[6]); int numpages; if (COMMS_NET_TOTALSUM%9 == 0) numpages = COMMS_NET_TOTALSUM/9; else numpages = COMMS_NET_TOTALSUM/9+1; sprintf(szVal, "%d/%d", line/9, numpages); LCD_DisString(0, 22, szVal);
时间: 2024-01-08 08:04:44 浏览: 22
以下是优化后的代码,主要包括使用变量替代一些常量,避免重复计算,以及采用 sprintf_s 函数来避免缓冲区溢出问题:
```
int line = 9;
int page = 0;
int max_lines_per_page = 9;
Lcd_DispClear();
memset(szVal, 0, sizeof(szVal));
if (netid == 0) {
sprintf_s(szVal, sizeof(szVal), "%s %d", "网口", netid+2);
} else {
sprintf_s(szVal, sizeof(szVal), "%s %d", "网口", netid);
}
LCD_DisString(0, 0, szVal);
LCD_DisString(0, 10, (char *)gcszLcdParam[6]);
int numpages = COMMS_NET_TOTALSUM / max_lines_per_page + (COMMS_NET_TOTALSUM % max_lines_per_page ? 1 : 0);
sprintf_s(szVal, sizeof(szVal), "%d/%d", line / max_lines_per_page + 1, numpages);
LCD_DisString(0, 22, szVal);
```
此外,如果 COMMS_NET_TOTALSUM 这个常量在其他地方也被使用到了,可以将其定义为一个宏或者全局变量,这样能够提高代码的可维护性和可读性。