uint16_t和uint8_t的区别
时间: 2023-12-01 22:31:03 浏览: 652
uint16_t和uint8_t是C语言中的数据类型,它们的主要区别在于所能表示的数值范围和占用的存储空间。
1. uint16_t:是无符号16位整数类型,它可以表示的数值范围是从0到65535。在内存中占用2个字节(16位)的存储空间。
2. uint8_t:是无符号8位整数类型,它可以表示的数值范围是从0到255。在内存中占用1个字节(8位)的存储空间。
因此,uint16_t可以表示更大的数值范围,但占用的存储空间也更多。根据具体情况,选择合适的数据类型可以有效地节省内存空间并确保足够的数值范围。
相关问题
typedef struct { uint16_t Buffer_Len; uint16_t PM1_0_CF; uint16_t PM2_5_CF; uint16_t PM10_CF; uint16_t PM1_0; uint16_t PM2_5; uint16_t PM10; uint16_t Count0_3nm; uint16_t Count0_5nm; uint16_t Count1_0nm; uint16_t Count2_5nm; uint16_t Count5_0nm; uint16_t Count10nm; }PM_Sensor_DataStruct;
这是一个结构体类型的声明,该结构体类型名为PM_Sensor_DataStruct。该结构体中包含了13个成员变量,分别表示PM传感器测量出的PM1.0/2.5/10浓度(CF和非CF,单位:ug/m^3)、0.3um/0.5um/1.0um/2.5um/5.0um/10um以上颗粒物的个数。这个结构体类型可以用来存储从PM传感器解析后的数据。
uint8_t mHighestVoltgeCellSubSysNum; uint8_t mHighestVoltgeCellNum; uint16_t mHighestVoltgeCellVal; uint8_t mLowestVoltgeCellSubSysNum; uint8_t mLowestVoltgeCellNum; uint16_t mLowestVoltgeCellVal; uint8_t mHighestTmprtureSubSysNum; uint8_t mHighestTmprtureProbNum; uint8_t mHighestTmprtureVal; uint8_t mLowestTmprtureSubSysNum; uint8_t mLowestTmprtureProbNum; uint8_t mLowestTmprtureVal;写一下上面所有变量的set、get函数
以下是上述所有变量的set和get函数的示例代码:
```cpp
// Set and Get functions for mHighestVoltgeCellSubSysNum
void setHighestVoltageCellSubSysNum(uint8_t value) {
mHighestVoltgeCellSubSysNum = value;
}
uint8_t getHighestVoltageCellSubSysNum() {
return mHighestVoltgeCellSubSysNum;
}
// Set and Get functions for mHighestVoltgeCellNum
void setHighestVoltageCellNum(uint8_t value) {
mHighestVoltgeCellNum = value;
}
uint8_t getHighestVoltageCellNum() {
return mHighestVoltgeCellNum;
}
// Set and Get functions for mHighestVoltgeCellVal
void setHighestVoltageCellValue(uint16_t value) {
mHighestVoltgeCellVal = value;
}
uint16_t getHighestVoltageCellValue() {
return mHighestVoltgeCellVal;
}
// Set and Get functions for mLowestVoltgeCellSubSysNum
void setLowestVoltageCellSubSysNum(uint8_t value) {
mLowestVoltgeCellSubSysNum = value;
}
uint8_t getLowestVoltageCellSubSysNum() {
return mLowestVoltgeCellSubSysNum;
}
// Set and Get functions for mLowestVoltgeCellNum
void setLowestVoltageCellNum(uint8_t value) {
mLowestVoltgeCellNum = value;
}
uint8_t getLowestVoltageCellNum() {
return mLowestVoltgeCellNum;
}
// Set and Get functions for mLowestVoltgeCellVal
void setLowestVoltageCellValue(uint16_t value) {
mLowestVoltgeCellVal = value;
}
uint16_t getLowestVoltageCellValue() {
return mLowestVoltgeCellVal;
}
// Set and Get functions for mHighestTmprtureSubSysNum
void setHighestTemperatureSubSysNum(uint8_t value) {
mHighestTmprtureSubSysNum = value;
}
uint8_t getHighestTemperatureSubSysNum() {
return mHighestTmprtureSubSysNum;
}
// Set and Get functions for mHighestTmprtureProbNum
void setHighestTemperatureProbNum(uint8_t value) {
mHighestTmprtureProbNum = value;
}
uint8_t getHighestTemperatureProbNum() {
return mHighestTmprtureProbNum;
}
// Set and Get functions for mHighestTmprtureVal
void setHighestTemperatureValue(uint8_t value) {
mHighestTmprtureVal = value;
}
uint8_t getHighestTemperatureValue() {
return mHighestTmprtureVal;
}
// Set and Get functions for mLowestTmprtureSubSysNum
void setLowestTemperatureSubSysNum(uint8_t value) {
mLowestTmprtureSubSysNum = value;
}
uint8_t getLowestTemperatureSubSysNum() {
return mLowestTmprtureSubSysNum;
}
// Set and Get functions for mLowestTmprtureProbNum
void setLowestTemperatureProbNum(uint8_t value) {
mLowestTmprtureProbNum = value;
}
uint8_t getLowestTemperatureProbNum() {
return mLowestTmprtureProbNum;
}
// Set and Get functions for mLowestTmprtureVal
void setLowestTemperatureValue(uint8_t value) {
mLowestTmprtureVal = value;
}
uint8_t getLowestTemperatureValue() {
return mLowestTmprtureVal;
}
```
这些函数可根据需要在您的代码中使用,用于设置和获取相应的变量值。请注意,这些示例代码仅提供了函数的框架,您需要根据您的具体需求进行适当的实现。
阅读全文