Chr 函数Chr function

返回一个字符串,其中包含与指定的字符代码关联的字符。Returns a String containing the character associated with the specified character code.

语法Syntax

Chr(charcode)Chr(charcode)
ChrB(charcode)ChrB(charcode)
ChrW(charcode)ChrW(charcode)

必需的 charcode 参数是用于确定字符的 LongThe required charcode argument is a Long that identifies a character.

注解Remarks

0–31 之间的数字与标准非打印 ASCII 代码相同。Numbers from 0–31 are the same as standard, nonprintable ASCII codes. 例如,Chr(10) 将返回换行符。For example, Chr(10) returns a linefeed character. charcode 的正常范围是 0–255。The normal range for charcode is 0–255. 但是,在 DBCS 系统中,charcode 的实际范围是 -32768–65535。However, on DBCS systems, the actual range for charcode is -32768–65535.

备注

[!注释] ChrB 函数与 字符串 中包含的字节数据一起使用。The ChrB function is used with byte data contained in a String. ChrB 总是返回一个字节,而不会返回一个字符(可能包含一个或两个字节)。Instead of returning a character, which may be one or two bytes, ChrB always returns a single byte.

ChrW 函数返回包含 Unicode 字符的字符串,但对不支持 Unicode 的平台例外,这种情况下的行为与 Chr 函数相同。The ChrW function returns a String containing the Unicode character except on platforms where Unicode is not supported, in which case, the behavior is identical to the Chr function.

备注

适用于 Macintosh 的 Visual Basic 不支持 Unicode 字符串。Visual Basic for the Macintosh does not support Unicode strings. 因此,ChrW(n) 无法返回 128–65,535 范围内的 n 值对应的所有 Unicode 字符,这与 Windows 环境中相同。Therefore, ChrW(n) cannot return all Unicode characters for n values in the range of 128–65,535, as it does in the Windows environment. 相反,ChrW(n) 会尝试“最佳猜测”大于 127 的 Unicode 值 n。Instead, ChrW(n) attempts a "best guess" for Unicode values n greater than 127. 因此,您不应在 Macintosh 环境中使用 ChrWTherefore, you should not use ChrW in the Macintosh environment.

函数 Asc()、AscB() 和 AscW()Chr()、ChrB() 和ChrW() 的反函数。The functions Asc(), AscB(), and AscW() are the opposite of Chr(), ChrB(), and ChrW(). Asc() 函数将字符串转换为整数。The Asc() functions convert a string to an integer.

示例Example

此示例使用 Chr 函数返回与指定字符代码关联的字符。This example uses the Chr function to return the character associated with the specified character code.

Dim MyChar
MyChar = Chr(65)    ' Returns A.
MyChar = Chr(97)    ' Returns a.
MyChar = Chr(62)    ' Returns >.
MyChar = Chr(37)    ' Returns %.

另请参阅See also

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