java python oracle推斷字串是否為數位函數

標籤：

java

public boolean isNumeric(String str){  Pattern pattern = Pattern.compile("^-?[0-9]+\\.?[0-9]*");    Matcher isNum = pattern.matcher(str);   if( !isNum.matches() ){       return false;    }    return true; }

python

def isNum(value):        try:                int(value) + 1        except:                return False        else:                return True

oracle

create or replace function func_is_number( sx in varchar) return int is x number;  beginx:=to_number(sx);return 1;exception  when others thenreturn 0; end;

java python oracle推斷字串是否為數位函數