tailieunhanh - Flash: ActionScript Language Reference- P9

Tham khảo tài liệu 'flash: actionscript language reference- p9', công nghệ thông tin, đồ họa - thiết kế - flash phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Availability Flash Player 5. Usage ength Number Description Property an integer specifying the number of characters in the specified String object. Because all string indexes are zero-based the index of the last character for any string x is - 1. Example The following example creates a new String object and uses to count the number of characters var my_str String Hello world trace output 12 The following example loops from 0 to . The code checks the characters within a string and if the string contains the @ character true displays in the Output panel. If it does not contain the @ character then false displays in the Output panel. function checkAtSymbol my_str String Boolean for var i 0 i i if i @ return true return false trace checkAtSymbol dog@ output true trace checkAtSymbol Chris output false An example is also in the file in the HelpExamples folder. The following list gives typical paths to this folder Windows Program Files Macromedia Flash MX 2004 Samples HelpExamples Macintosh HD Applications Macromedia Flash MX 2004 Samples HelpExamples 801 Availability Flash Player 5. Usage start Number end Number String Parameters start A number the zero-based index of the starting point for the slice. If start is a negative number the starting point is determined from the end of the string where -1 is the last character. end A number an integer that is 1 the index of the ending point for the slice. The character indexed by the end parameter is not included in the extracted string. If this parameter is omitted is used. If end is a negative number the ending point is determined by counting back from the end of the string where -1 is the last character. Returns A string a substring of the specified string. Description Method returns a string that includes the start character and all characters up to .