PI消息映射中的函数介绍
转自：http://help.sap.com/saphelp_nw04/helpdata/en/43/c4cdfc334824478090739c04c4a249/content.htm
General

). To call the dialog for Function Properties, double click the data-flow object.

X = "sparring with a purple porpoise"

Y = “p”

Z = “t”

R = "starring with a turtle tortoise"

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length

O = Length of string

endsWith

R = true when Y is the last string in X; otherwise false.

startsWith
(2 input parameters)

R = true when Y is the first string in X; otherwise false.

startWith
(3 input parameters)

R = true when Y matches X from position Z; otherwise false.

toUpperCase

Converts all lower case letters in I to upper case letters.

trim

Removes all white space characters (spaces, tabs, returns) at the start and end of a string. Acts the same as the trim() method of the JDK class java.lang.String.

toLowerCase

Converts all upper case letters in I to lower case letters.

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