Processing FloatDict.sub()用法及代码示例

FloatDict inventory;

void setup() {
  size(200, 200);
  inventory = new FloatDict();
  inventory.set("coffee",108.6);
  inventory.set("flour",5.8);
  inventory.set("tea",8.2);
  println(inventory);  // There is 5.8 of flour
  inventory.sub("flour", 3.4);
  println(inventory);  // There is 2.4 of flour
}