Abstract: The delete principle can confirm the spectroscopic terms of three equivalent electrons system. If the number of equivalent electrons is above three, the workload to reduce the delete principle is really large. After the delete principle is introduced, a C ＋＋ programming which can easily solve the problem is depicted. The result of eight equivalent electrons is used to illustrate the validity of the programming. The programming can confirm spectroscopic terms of equivalent electrons system directly, and it improves the delete principle.

Key words: C ＋＋ programming, equivalent electrons, spectroscopic terms, delete principle