Java/C++/C言語/PHP/Python演算子優先順位表

C++の演算子の優先順位
Precedence	Operator	Description	Associativity
1	`::`	Scope resolution	Left-to-right
2	`++` `--`	Suffix/postfix increment and decrement
	`()`	Function call
	`[]`	Array subscripting
	`.`	Element selection by reference
	`−>`	Element selection through pointer
3	`++` `--`	Prefix increment and decrement	Right-to-left
	`+` `−`	Unary plus and minus
	`!` `~`	Logical NOT and bitwise NOT
	`( type )`	Type cast
	`*`	Indirection (dereference)
	`&`	Address-of
	`sizeof`	Size-of
	`new` , `new[]`	Dynamic memory allocation
	`delete` , `delete[]`	Dynamic memory deallocation
4	`.` `->`	Pointer to member	Left-to-right
5	`*` `/` `%`	Multiplication, division, and remainder
6	`+` `−`	Addition and subtraction
7	`<<` `>>`	Bitwise left shift and right shift
8	`<` `<=`	For relational operators < and ≤ respectively
8	`>` `>=`	For relational operators > and ≥ respectively
9	`==` `!=`	For relational = and ≠ respectively
10	`&`	Bitwise AND
11	`^`	Bitwise XOR (exclusive or)
12	`\|`	Bitwise OR (inclusive or)
13	`&&`	Logical AND
14	`\|\|`	Logical OR
15	`?:`	Ternary conditional	Right-to-Left
16	`=`	Direct assignment (provided by default for C++ classes)
	`+=` `−=`	Assignment by sum and difference
	`*=` `/=` `%=`	Assignment by product, quotient, and remainder
	`<<=` `>>=`	Assignment by bitwise left shift and right shift
	`&=` `^=` `\|=`	Assignment by bitwise AND, XOR, and OR
17	`throw`	Throw operator (for exceptions)
18	`,`	Comma	Left-to-right

C言語の演算子の優先順位
Precedence	Operator	Description	Associativity
1	`++` `--`	Suffix/postfix increment and decrement	Left-to-right
	`()`	Function call
	`[]`	Array subscripting
	`.`	Structure and union member access
	`−>`	Structure and union member access through pointer
	`( type ){ list }`	Compound literal (C99)
2	`++` `--`	Prefix increment and decrement	Right-to-left
	`+` `−`	Unary plus and minus
	`!` `~`	Logical NOT and bitwise NOT
	`( type )`	Type cast
	`*`	Indirection (dereference)
	`&`	Address-of
	`sizeof`	Size-of
	`_Alignof`	Alignment requirement (C11)
3	`*` `/` `%`	Multiplication, division, and remainder	Left-to-right
4	`+` `−`	Addition and subtraction
5	`<<` `>>`	Bitwise left shift and right shift
6	`<` `<=`	For relational operators < and ≤ respectively
6	`>` `>=`	For relational operators > and ≥ respectively
7	`==` `!=`	For relational = and ≠ respectively
8	`&`	Bitwise AND
9	`^`	Bitwise XOR (exclusive or)
10	`\|`	Bitwise OR (inclusive or)
11	`&&`	Logical AND
12	`\|\|`	Logical OR
13	`?:`	Ternary conditional	Right-to-Left
14	`=`	Simple assignment
	`+=` `−=`	Assignment by sum and difference
	`*=` `/=` `%=`	Assignment by product, quotient, and remainder
	`<<=` `>>=`	Assignment by bitwise left shift and right shift
	`&=` `^=` `\|=`	Assignment by bitwise AND, XOR, and OR
15	`,`	Comma	Left-to-right

PHPの演算子の優先順位
方向を結合する	演算子	追加情報
非結合	`clone new`	クローン、ニューエンジン
左	`[`	array()
非結合	`++ --`	増加／減少演算子
非結合	`~ - (int) (float) (string) (array) (object) (bool) @`	タイプ
非結合	`instanceof`	タイプ
右結合	`!`	論理演算子
左	`* / %`	算術演算子：算術演算子
左	`+ - .`	算術演算子：算術演算子文字演算子：文字演算子
左	`<< >>`	位演算子：ビット演算子
非結合	`< <= > >= <>`	比較演算子
非結合	`== != === !==`	比較演算子
左	`&`	位演算子: ビット演算子引用: 参照
左	`^`	位演算子：ビット演算子
左	`\|`	位演算子：ビット演算子
左	`&&`	論理演算子
左	`\|\|`	論理演算子
左	`? :`	三項演算子：三項演算子
右	`= += -= *= /= .= %= &= \|= ^= <<= >>=`	代入演算子
左	`and`	論理演算子
左	`xor`	論理演算子
左	`or`	論理演算子
左	`,`	多かれ多いかれ

この表はPythonの演算子の優先順位（低から高）を示しています。

最低の優先順位（最も緩やかに結合）から最高の優先順位（最も緊密に結合）へ。

これは、Pythonが式の中でまず下部の演算子を、その後上部の演算子を計算するという意味です。