MSDN:
| Цитата | Left Function
Returns a Variant (String) containing a specified number of characters from the left side of a string.
Syntax
Left(string, length)
The Left function syntax has thesenamed arguments:
Part Description string Required.String expression from which the leftmost characters are returned. If string containsNull, Null is returned. length Required; Variant (Long).Numeric expression indicating how many characters to return. If 0, a zero-length string ("") is returned. If greater than or equal to the number of characters in string, the entire string is returned.
Remarks
To determine the number of characters in string, use the Len function.
Note Use the LeftB function with byte data contained in a string. Instead of specifying the number of characters to return, length specifies the number of bytes. | |