Description: large commercial credits statistical system source code 1. If the wizard set up classes at 8:00, the figure of the total number of classes, add classes at the time of admission, please check 1-8 classes have all logging, if the data is read into, and in the preservation of several classes before I would be grateful if more than eight deleted data. 2. the preservation of new data, I would be grateful if extra space to delete data. 3. no test scores for the credits can only be used to 0, input, should not use empty. 4. expulsion, ticking at home hygiene, not ticking said supernumerary Health. Prior to preserve data entry with conditions, statistical statements will be wrong!
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