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äŸïŒä»®èª¬ - TypeScript/é¡äŒŒã®éçåä»ãèšèªïŒ:
interface TemperatureReading {
sensorId: string;
temperature: number; // æž©åºŠã®æ°å€åã匷å¶
timestamp: Date;
}
function processTemperatureReading(reading: TemperatureReading) {
if (typeof reading.temperature !== 'number') {
console.error("ç¡å¹ãªæž©åºŠèªã¿åãå€: " + reading.temperature);
return;
}
// ãããªãåŠçããžãã¯...
}
ãã®äŸã§ã¯ã`TemperatureReading` ã€ã³ã¿ãŒãã§ãŒã¹ã枩床èªã¿åãå€ã®æåŸ ãããåãå®çŸ©ããŠããŸãã `processTemperatureReading` 颿°ã¯ãã®åã匷å¶ããæ°å€ä»¥å€ã®å€ãåŠçãããã®ãé²ããŸããTypeScriptã¯JavaScriptïŒåçåä»ãïŒã«ã³ã³ãã€ã«ãããŸãããåãã§ãã¯ã¯ãããã€åã«ã³ã³ãã€ã«ããã»ã¹äžã«çºçããŸãã
éä¿¡ãããã³ã«ãšAPI
ã¹ããŒãã·ãã£ã·ã¹ãã ã¯ãããŸããŸãªãããã³ã«ãšAPIã䜿çšããŠäºãã«éä¿¡ããããšããããããŸããåã·ã¹ãã ã䜿çšããŠãã·ã¹ãã éã§äº€æãããã¡ãã»ãŒãžã®æ§é ãšåœ¢åŒãå®çŸ©ããçžäºéçšæ§ã確ä¿ããéä¿¡ãšã©ãŒãé²ãããšãã§ããŸããããšãã°ã亀é管çã·ã¹ãã ã¯ããªã¢ã«ã¿ã€ã ã®é§è»ç©ºãç¶æ³æ å ±ãæäŸããããã«ãé§è»ã·ã¹ãã ãšéä¿¡ããå¿ èŠãããå ŽåããããŸããåã·ã¹ãã ã¯ããã®éä¿¡ã®ã¡ãã»ãŒãžåœ¢åŒãå®çŸ©ããäž¡æ¹ã®ã·ã¹ãã ãäºããæ£ããçè§£ããŠããããšã確èªã§ããŸãã
äŸïŒProtocol BuffersãŸãã¯é¡äŒŒã®åå®å šãªã·ãªã¢ã©ã€ãŒãŒã·ã§ã³ã䜿çšïŒ:
Protocol BuffersïŒprotobufïŒã¯ãæ§é åããŒã¿ãã·ãªã¢ã©ã€ãºããããã®ãèšèªã«äŸåããããã©ãããã©ãŒã ã«äŸåããªããæ¡åŒµå¯èœãªã¡ã«ããºã ã§ããç¹å®ã®æ§æã䜿çšããŠã¡ãã»ãŒãžåœ¢åŒãå®çŸ©ã§ãããã®åŸãããŸããŸãªèšèªïŒJavaãC++ãPythonãªã©ïŒã§ã³ãŒããçæããŠããããã®åœ¢åŒã®ã¡ãã»ãŒãžãç°¡åã«ã·ãªã¢ã©ã€ãºããã³ãã·ãªã¢ã©ã€ãºã§ããŸããããã¯ãäºãã«éä¿¡ããããŸããŸãªã·ã¹ãã éã§æ¬è³ªçã«åŒ·åãªåã·ã¹ãã ãæäŸããŸãã
// parking_availability.proto
syntax = "proto3";
message ParkingAvailabilityRequest {
string parking_lot_id = 1;
}
message ParkingAvailabilityResponse {
int32 available_spaces = 1;
int32 total_spaces = 2;
}
ãã®å®çŸ©ã䜿çšãããšãããŸããŸãªèšèªã§ `ParkingAvailabilityRequest` ããã³ `ParkingAvailabilityResponse` ã¡ãã»ãŒãžãåŠçããããã®ã³ãŒããçæã§ããã·ã¹ãã éã®åã®äžè²«æ§ã確ä¿ã§ããŸãã
çµã¿èŸŒã¿ã·ã¹ãã ãšIoTããã€ã¹
ã¹ããŒãã·ãã£ã¯ãããŸããŸãªéœåžæ©èœãå¶åŸ¡ããããŒã¿ãåéããããã«ãçµã¿èŸŒã¿ã·ã¹ãã ãšIoTããã€ã¹ã«å€§ããäŸåããŠããŸããåã·ã¹ãã ã䜿çšããŠããããã®ããã€ã¹ã®å®å šæ§ãšä¿¡é Œæ§ã確ä¿ã§ããŸããããšãã°ãã¹ããŒãè¡ç¯ã³ã³ãããŒã©ãŒã¯ãåšå²ã®å ã¬ãã«ãç£èŠããããã«å¿ããŠå ã®åŒ·åºŠã調æŽããå¿ èŠãããå ŽåããããŸããåã·ã¹ãã ã䜿çšããŠãå ã»ã³ãµãŒãæå¹ãªå ã¬ãã«ã®èªã¿åãå€ãè¿ããã³ã³ãããŒã©ãŒãå®å šãªå¶éå ã§å ã®åŒ·åºŠã調æŽããããšãä¿èšŒã§ããŸãã
äŸïŒçµã¿èŸŒã¿ã·ã¹ãã çšã®ã¡ã¢ãªå®å šã§åå®å šãªèšèªã§ããRustã䜿çšïŒ:
struct LightSensorReading {
ambient_light: u32,
}
fn read_light_sensor() -> LightSensorReading {
// å
ã»ã³ãµãŒããã®èªã¿åããã·ãã¥ã¬ãŒã
let light_level: u32 = 500; // äŸã®å€
LightSensorReading { ambient_light: light_level }
}
fn adjust_light_intensity(reading: LightSensorReading) {
let intensity = reading.ambient_light / 10; // 匷床ãèšç®
// 匷床ã«åºã¥ããŠè¡ç¯ãå¶åŸ¡
println!("å
匷床ã調æŽäž: {}", intensity);
}
fn main() {
let sensor_data = read_light_sensor();
adjust_light_intensity(sensor_data);
}
Rustã®åŒ·åãªåã·ã¹ãã ãšã¡ã¢ãªå®å šæ©èœã¯ãã¹ããŒãã·ãã£ã¢ããªã±ãŒã·ã§ã³åãã®ä¿¡é Œæ§ãé«ãå®å šãªçµã¿èŸŒã¿ã·ã¹ãã ãéçºããã®ã«çæ³çã§ãã
ã¹ããŒãã³ã³ãã©ã¯ããšãããã¯ãã§ãŒã³
ãããã¯ãã§ãŒã³æè¡ãšã¹ããŒãã³ã³ãã©ã¯ãã¯ã忣åãšãã«ã®ãŒååŒãéæãªæç¥šã·ã¹ãã ãå®å šãªããŒã¿ã¹ãã¬ãŒãžãªã©ã®ã¢ããªã±ãŒã·ã§ã³ã§ãã¹ããŒãã·ãã£ã§ãŸããŸã䜿çšãããŠããŸããåã·ã¹ãã ã䜿çšããŠãã¹ããŒãã³ã³ãã©ã¯ãã®æ£ç¢ºæ§ãšã»ãã¥ãªãã£ã確ä¿ããééçæå€±ãããŒã¿äŸµå®³ã«ã€ãªããå¯èœæ§ã®ããè匱æ§ãé²ãããšãã§ããŸããSolidityïŒEthereumçšïŒãªã©ã®èšèªã¯ããã匷åãªåãã§ãã¯æ©èœããŸããŸãçµã¿èŸŒãã§ããŸãã
äŸïŒæŽæ°ãããåæ©èœãæã€SolidityïŒ:
pragma solidity ^0.8.0;
contract EnergyTrading {
address public seller;
address public buyer;
uint256 public energyAmount;
uint256 public pricePerUnit;
enum TradeStatus { Pending, Accepted, Completed }
TradeStatus public status;
constructor(address _buyer, uint256 _energyAmount, uint256 _pricePerUnit) {
seller = msg.sender;
buyer = _buyer;
energyAmount = _energyAmount;
pricePerUnit = _pricePerUnit;
status = TradeStatus.Pending;
}
function acceptTrade() public {
require(msg.sender == buyer, "Only the buyer can accept the trade");
status = TradeStatus.Accepted;
}
function completeTrade() public {
require(msg.sender == seller, "Only the seller can complete the trade");
require(status == TradeStatus.Accepted, "Trade must be accepted first");
// è³éãšãšãã«ã®ãŒåäœã転é
status = TradeStatus.Completed;
}
}
`TradeStatus` ã® `enum` ã®äœ¿çšãšæç€ºçãªå宣èšã¯ãã¹ããŒãã³ã³ãã©ã¯ãã®å¯èªæ§ãšå®å šæ§ãåäžãããŸããææ°ã®SolidityããŒãžã§ã³ã¯ãäžè¬çãªã¹ããŒãã³ã³ãã©ã¯ãã®è匱æ§ãé²ãã®ã«åœ¹ç«ã€é«åºŠãªåæ©èœãæäŸããŸãã
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