First, draw the abscissa and mark the date of the Spring Festival. Then draw the ordinate to mark the scale of money; Finally, according to the expenditure of each day during the Spring Festival, draw the corresponding length.

Statistical charts are images and maps of various geometric figures and things drawn according to statistics. It is intuitive, vivid and concrete. Statistical charts can simplify, popularize and visualize complex statistical data, which makes people clear at a glance and easy to understand and compare. There are bar charts, fan charts, line charts, pictograms, etc. Its main uses are: to express the contrast between phenomena; Expose the whole structure; Check the implementation of the plan; Reveal the interdependence between phenomena and reflect the distribution of the whole unit; Explain the spatial distribution of phenomena.