The Pos ()
Function in a string contains another string of starting position,
Grammar Pos (string1, string2, start} {)
String1 parameters: a string type, specify to find substring string2 string2: string type string, specify the string to find in string1 start: long, optional, specify which characters from string1 began to find, the default value is 1 long return values, function performs successfully return after the start position of string2 in string1 first appeared in the starting position, if according to specified requirements is not found in the string1 string2, or the start value is more than the length of the string1, Pos () function returns a zero, if the value of the parameter is NULL, any Pos () function returns NULL,
Use Pos () function in the string search is case sensitive, therefore, "aa" does not match the "aa",
Pb9 the PosW ()
Pb9 above PosA ()
Any version can use Pos ()

CodePudding user response:

Write very in place, then?