1. A method for performing characteristic string matching based on discreteness, cross and non-completeness on an information processing device, comprising the steps of: Step A: setting characteristic parameters and inputting keywords, wherein a user sets three characteristic parameters in a User Interface (UI) or an information processing device automatically sets: a discrete number reflecting discreteness, wherein the discreteness is a number of discrete characters in the keywords presented in a text; a cross number reflecting a cross parameter, wherein the cross parameter is a number of cross characters or substrings in the keywords presented in the text; and a non-complete number reflecting a non-completeness, wherein the non-completeness is a number of characters in the keywords not presented in the text; and inputting keywords in the UI; Step B: string matching and outputting, wherein the information processing device performs the string matching based on the three characteristic parameters, with the discrete number, cross number and non-complete number set in step A as matching constraints, for a designated text according to the input keywords, and if a calculated practical discrete number, practical cross number and practical non-complete number satisfy the matching constraints, then the information processing device outputs a matching result of one of eight retrieval modes combined by the three characteristic parameters.
1. A method for performing characteristic string matching based on discreteness, cross and non-completeness on an information processing device, comprising the steps of: Step A: setting characteristic parameters and inputting keywords, wherein a user sets three characteristic parameters in a User Interface (UI) or an information processing device automatically sets: a discrete number reflecting discreteness, wherein the discreteness is a number of discrete characters in the keywords presented in a text; a cross number reflecting a cross parameter, wherein the cross parameter is a number of cross characters or substrings in the keywords presented in the text; and a non-complete number reflecting a non-completeness, wherein the non-completeness is a number of characters in the keywords not presented in the text; and inputting keywords in the UI; Step B: string matching and outputting, wherein the information processing device performs the string matching based on the three characteristic parameters, with the discrete number, cross number and non-complete number set in step A as matching constraints, for a designated text according to the input keywords, and if a calculated practical discrete number, practical cross number and practical non-complete number satisfy the matching constraints, then the information processing device outputs a matching result of one of eight retrieval modes combined by the three characteristic parameters. 8. The method according to claim 1 , characterized in that when the keywords are input in the above step A, the UI has a text box for the user inputting the keywords.