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. 6. The method according to claim 1 , characterized in that when the characteristic parameters are set in step A, the UI is configured to have corresponding value input boxes for setting user characteristic parameters when the characteristic parameters are set by the user.