substr

美 　英

• 網(wǎng)絡字符串；子串；字符串截取

例句

The substr _replace() function replaces a part of a string with another string.

函數(shù)的作用是：替換字符串中一部分為另一字符串。

An implementation like that makes use of the fact that functions like SUBSTR and LENGTH still work correctly on the GRAPHIC data type.

SUBSTR和LENGTH等函數(shù)仍然可以正確地處理GRAPHIC數(shù)據(jù)類型，所以這樣的實現(xiàn)是有效的。

The substr () function returns a part of a string.

函數(shù)地作用是：返回子字符串可以。

In combination with the data types that use UTF-8 encoding, functions like SUBSTR and LENGTH still work with bytes and not with characters.

在與使用UTF-8編碼的數(shù)據(jù)類型結合使用時，SUBSTR和LENGTH等函數(shù)仍然處理字節(jié)而不是字符。

Functions like SUBSTR and LENGTH work with characters when called in conjunction with UCS-2 data types.

當用UCS-2數(shù)據(jù)類型調用時，SUBSTR和LENGTH等函數(shù)處理字符。

You saw in Part 1, Figure 13 that the cn attribute type has a field called SUBSTR, which defines the matching rules for substring match.

在第1部分的圖13可以看到，cn屬性類型有一個叫做SUBSTR的字段，它定義了子字符串匹配的匹配規(guī)則。

often-overlooked thing about substr() is that you can use a negative character position.

一個容易被忽略的特點是，你可以使用負的字符串起始位置。

This explains the use of substr(text, match[0], match[1]) in the last line of code.

這解釋了最后一行代碼中substr（text，match[0]，match[1]）的使用。