地球引擎初级教程——变量、列表、字典和函数（含练习）

代码：

print('Hello World');

// Variables
var city = 'Bengaluru';
var country = 'India';
print(city, country);

var population = 8400000;
print(population);
 
// List
var majorCities = ['Mumbai', 'Delhi', 'Chennai', 'Kolkata'];
print(majorCities);

// Dictionary
var cityData = {
  'city': city,
  'population': 8400000,
  'elevation': 930
};
print(cityData);

// Function。函数一定要添加返回值，
var greet = function(name) {
    return 'Hello ' + name;
};
print(greet('World'));

// This is a comment

练习：