precedence of operators 中文意思是什麼
precedence of operators
解釋
操作符的優先級- precedence : 〈罕用語〉n. 1. 領先,先行,先在;在前。2. 上位,上座,上席。3. 優先,優越;優先權。4. (按地位的)先後次序。
- of : OF =Old French 古法語。
- operators : (運算符):可以從一個或多個值中計算獲得新值。例如,將兩個數值相加就可以獲得一個新值。
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To convert an expression in an infix expression to its equivalent in postfix notation, we must know the precedence and associativity of operators
要把表達式從中綴表達式的形式轉換成用后綴表示法表示的等價表達式,必須了解操作符的優先級和結合性。 -
If the character is an operator, pop operators until you reach an opening parenthesis, an operator of lower precedence, or a right associative symbol of equal precedence
如果字元是個操作符,彈出( pop )操作符,直至遇見開括號( opening parenthesis ) 、優先級較低的操作符或者同一優先級的右結合符號。 -
2. postfix operators have the highest order of precedence in expression evaluation
2 .后綴運算符在表達式計算中具有最高的優先級。 -
The associativity of an operator defines the order in which operators of the same precedence are grouped right - to - left or left - to - right
操作符的結合性定義了相同優先級操作符組合的順序(從右至左或從左至右) 。 -
When simple expressions are combined to form a complex expression, the data type of the result is determined by combining the rules for the operators with the rules for data type precedence
當將簡單表達式組合為復雜表達式時,結果的數據類型取決于運算符規則與數據類型優先級規則的組合方式。 -
In these complex expressions, the operators are evaluated in order based on the sql server definition of operator precedence
在這些復雜表達式中,運算符將根據sql server運算符優先級定義按順序進行計算。
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