1. A method for automatically pasting a string from a clipboard to an interface of an intelligent terminal, comprising: obtaining, by a processor, a candidate string copied by a user from a clipboard of an intelligent terminal; obtaining, by the processor, a first time, wherein the first time is a time when the candidate string was copied to the clipboard; obtaining, by the processor, a second time, wherein the second time is a time when the user visited the interface subsequent to the first time; calculating, by the processor, a time difference between the first time and the second time; determining, by the processor, whether the time difference is less than a preset reference time; when it is determined that the time difference is less than a preset reference time, indicating, by the processor, that an intention of the user is to paste the candidate string in a designated location of an interface displayed on the intelligent terminal; searching, by a processor, an auto-paste record and determining whether the candidate string is in the auto-paste record; and displaying, by a processor, the candidate string in the designated location of the interface without receiving an instruction to paste from the user when the intention of the user is indicated to paste the candidate string in the designated location of the interface and when the candidate string is not in the auto-paste record.