40823106

main() {
  List temp = ["20C", "30C", "50F", "40C", "23F"];
  for (var i in temp) {
  
    if (i[2] == "C") {
    var a = (i[0]+i[1]);
     var c = int.parse (a);
    double f =c*9/5+32;
    print ('F=$f');
    }

40823106

import "dart:html";
GtoB(num g){
return g*2.2046;
}
BtoG(num b){
return b*0.4536;
}
main() {
    InputElement tempInput = querySelector("#temp");
    querySelector("#submit").onClick.listen((e) => convert(tempInput.value));

40823106

GtoB(num g){
return g*2.2046;
}
BtoG(num b){
return b*0.4536;
}
main(){
var type;
int len;
var number;

40823106

//在F設置華氏溫度
int C=32;
  num F=(5/9)*(C-32);
  num G=F*C;
  
  main(){
  print ("華氏$C度等於攝氏$F度");
}

40823106

//在F設置攝氏溫度
int F=0;
  num C=F*(9/5)+32;
  num G=F*C;
  
  main(){
  print ("攝氏$F度等於華氏$C度");
}

40823106

void main() {
  for (int i = 0; i < 5; i++) {
    print('hello $i');
  }
  print('hello 中文');
}

40823106

void main() {
  print("hello world");
}