double类型转换百分数
时间: 2023-07-25 10:25:53 浏览: 41
double类型转换
_SetCursorPos(LCD_Line3, 0);
LCD_PrintString("NS: ");
char buf[16];
sprintf(buf,将 double 类型转换为百分数,可以乘以 100 并加上百分号(%)符号。例如 "%d", car_count_ns);
LCD_PrintString(buf);
LCD_SetCursorPos(LCD_Line4, 0);
LCD_Print,如果要将 0.25 转换为百分数,可以执行以下操作:
```c++
double num = 0.String("EW: ");
sprintf(buf, "%d", car_count_ew);
LCD_PrintString(buf);
LCD_SetCursorPos(L25;
num *= 100;
cout << num << "%" << endl;
```
输出结果为:
```
25%
```
注意,CD_Line5, 0);
LCD_PrintString("Vehicles Passed");
}
int main(void)
{
GPIO_Configuration();
EXTI如果需要指定百分数的小数位数,可以使用 cout 格式化输出,例如:
```c++
double num =_Configuration();
TIM_Configuration();
LCD_Configuration();
BKP_Configuration();
uint32_t period_ns = PERIOD 0.256;
num *= 100;
cout << fixed << setprecision(2) << num << "%" << endl;
```
输出结果为:
```
25.60%
```
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