S = REGEXP(STRING,EXPRESSION)其中EXPRESSION的取法為: . Any character [] Any character contained within the brackets [^] Any character not contained within the brackets \w A word character [a-z_A-Z0-9] \W Not a word character [^a-z_A-Z0-9] \d A digit [0-9] \D Not a digit [^0-9] \s Whitespace [ \t\r\n\f\v] \S Not whitespace [^ \t\r\n\f\v]那麽妳的問題就可以使用下面的代碼了>>a='5000.xls'a =5000.xls>> s=a(regexp(a,'\d'))s =5000這時的s是字符型的,如果妳需要數字的話就是用str2num轉化壹下祝妳學習愉快!
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