F＃-演算子の優先順位

次の表に、F＃言語の演算子およびその他の式キーワードの優先順位を、優先順位の低いものから高いものへと示します。

Operator	Associativity
as	Right
when	Right
	(pipe)
Left	;
Right	let
Non associative	function, fun, match, try
Non associative	if
Non associative	→
Right	:=
Right	,
Non associative	or,

Left	&, &&
Left	< op, >op, =,
op, &op	Left
&&& ,
	, ^{^}, _~, <<<, >>>
Left	^ op
Right	::
Right	:?>, :?
Non associative	- op, +op, (binary)
Left	* op,/op, %op
Left	* *op
Right	f x (function application)
Left
(pattern match)	Right
prefix operators (PLUSop, -op, %, %%, &, &&, !op, ~op)	Left
.	Left
f(x)	Left
f<types>	Left

例

let a : int32 = 20
let b : int32 = 10
let c : int32 = 15
let d : int32 = 5

let mutable e : int32 = 0
e <- (a + b)* c/d//( 30 *15 )/5
printfn "Value of (a + b)* c/d is : %d" e

e <- ((a + b) *c)/d//(30* 15 )/5
printfn "Value of ((a + b) *c)/d is : %d" e

e <- (a + b)* (c/d)//(30) *(15/5)
printfn "Value of (a + b)* (c/d) is : %d" e

e <- a + (b *c)/d//20 + (150/5)
printfn "Value of a + (b* c)/d is : %d" e

あなたがプログラムをコンパイルして実行すると、次の出力が得られます-

Value of (a + b) *c/d is : 90
Value of ((a + b)* c)/d is : 90
Value of (a + b) *(c/d) is : 90
Value of a + (b* c)/d is : 50

Fsharp-operators-precedence

F＃-演算子の優先順位

例