Introduction - If you have any usage issues, please Google them yourself
This example is the main function through a set of performance data given draw distribution map scores (including histogram and pie charts). This database is not used, because it is a simple score distribution map, and then on the database to another machine to re build table, for student information also involves entry problem, not easy operation, so the example of using more convenient through the input data manually or from file (TXT format text document, the first number is the total number of, for the rest of scores, scores are separated by a comma) import data in two ways to draw its graph. The results of input can be viewed and can be modified, histogram using three-dimensional graph pattern, looks more intuitive, scores of all have size fraction obvious mark, seem intuitively. Pie chart also marked the scores and the number of each corresponding to a color, looks very intuitive. Data entry part and the drawing part are integrated in a dialog box above, do not call in a single d