講下有關數學既野
carbon個 syntax真係好on9
for (e: T in s) {...}
用得:好明顯佢個type system既intended interpretation係set of possible values而唔係underlying implementation of container
但係個語序又T in s 明顯s作為一個T既instances既container 係一個proper subset of T
Array(Circle)
vs Array<Circle>
/Array[Circle]
for (e: T in s)
vs for s: T in s