A.(但編譯器會將函數(shù)調(diào)用優(yōu)化為相應(yīng)的指令) B.(但編譯器不會將函數(shù)調(diào)用優(yōu)化為相應(yīng)的指令) C.(但編譯器不可能會將函數(shù)調(diào)用優(yōu)化為相應(yīng)的指令) D.(但CPU會將函數(shù)調(diào)用優(yōu)化為相應(yīng)的指令)
A.vala:String?=null B.vala:String="" C.vala:String?="" D.vala:String?=0
A.0b00001014 B.0b311111 C.0b00001011 D.0300001011