Difference between revisions of "MC-Basic:ASC"
| (2 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
| + | {{Languages|MC-Basic:ASC}} | ||
{{MC-Basic | {{MC-Basic | ||
|SHORT FORM= | |SHORT FORM= | ||
| Line 65: | Line 66: | ||
|SEE ALSO= | |SEE ALSO= | ||
* [[MC-Basic:INSTR|INSTR]] | * [[MC-Basic:INSTR|INSTR]] | ||
| − | + | * [[MC-Basic:SPACE$|SPACE$]] | |
| − | [[Category | + | * [[MC-Basic:STRING$|STRING$]] |
| + | * [[MC-Basic:UTF$|UTF$]] | ||
| + | * [[MC-Basic:CHR$|CHR$]] | ||
| + | [[Category:MC-Basic:String_Manipulation|ASC]] | ||
}} | }} | ||
Latest revision as of 03:19, 17 April 2017
| Language: | English • 中文（简体） |
|---|
ASC returns an ASCII character value from within an ASCII-8 string, and the Unicode value from within a UTF-8 string.
<return value>: corresponding ASCII character code from a specified character in an ASCII-8 <string>, or to the Unicode value of a specified symbol in a UTF-8 <string>.
<string>: string expression from which the character is to be picked. If the sting is empty, the function returns the value 0.
<index>: optional real value defining the position in <string> of the ASCII-8 character or UTF-8 symbol to select. The first ASCII-8 character or UTF-8 symbol of the string is selected if the index is omitted or has a value of 0.
Syntax
?ASC(<string>{,<Index>})
Availability
All versions. Available for UTF-8 string since version 4.5.10
Type
<return value>: Double
<string>: String
<index>: Long
Range
<return value>: 0 to 127 for an ASCII-8 <string>, 0 to MAXLONG for a UTF-8 <string>
<string>: String
<index>: 0 to MaxLong
Scope
Configuration, Task or Terminal
Limitations
Read only
Examples
--> ?ASC("example",3)
9.700000000000000e+01 ‘returns the ASCII code for the letter "a"
--> ?ASC("example")
1.010000000000000e+02 ‘returns the ASCII code for the letter "e"
Common Shared UTF8Str as String of UTF8
UTF8Str = UTF$(196) + UTF$(197) + UTF$(198)
?ASC(UTF8str,2)
1.970000000000000e+02