numeric literal 中文意思是什麼
numeric literal
解釋
數值常字-
This example returns the square root of a numeric literal
此示例返回數值的平方根。 -
Scalars the scalar variables hold only one value, which may be a numeric literal, or a string literal. scalar variable names always begin with a $ sign
標量標量變量僅保存一個值,它可以是一個數值字面值,或一個字元串字面值。標量變量名稱始終用一個$字元開始。 -
A literal value, such as numeric or character data
一個如數字或字元數據這樣的值。 -
Use the literal date and time part strings when returning results to be displayed to a user, because the strings are frequently more meaningful than a numeric representation
當返回要為用戶顯示的結果時,請使用文字日期和時間部分,因為字元串通常比數字表示更有意義。 -
A numeric integer literal is cast by default to the
默認情況下,數值整數文本轉換為 -
By default, a real numeric literal on the right - hand side of the assignment operator is treated as
默認情況下,賦值運算符右側的實數被視為 -
Note that numeric literals do not include a sign ; a phrase like - 1 is actually an expression composed of the operator - and the literal 1
注意數值型的字面值不包括符號(譯注:正負號) ,像- 1實際上是個組合了一元運算符" - "和字面值1的表達式 -
Note that numeric literals do not include a sign ; a phrase like - 1 is actually an expression composed of the unary operator ` - ' and the literal 1
注意數值型的字面值不包括符號(譯注:正負號) ,像- 1實際上是個組合了一元運算符" - "和字面值1的表達式 -
Numeric displays the number with 2 - decimal - place precision, followed by the literal string " % "
顯示精確到小數點后兩位的數字,後跟字元串「 % 」 。
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