基本形在我们的生活中随处可见，例如：矩形的宣传栏、门窗、各种指示类标志等，造型简单且运用广泛。平面构成中将基本形进行组合即可得到新的图形，例如：把三角形进行简单组合，可让人联想到连绵起伏的山峦；将椭圆形重叠堆积，能让人想起层叠的树叶。
Basic shape can be seen everywhere in our life, such as rectangular billboards, doors and windows, various kinds of signs, etc. In plane composition, new shapes can be obtained by combining the basic shapes. For example, simple combination of triangles can remind people of rolling mountains; overlapping of ellipses can remind people of cascading leaves.
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不同的基本形群组能带给人们不同的视觉享受。基本形的组合方式可以在大小、方向、形状、色彩、位置，以及空间等方面进行变化，创造出新的形态。这样的构成简单、容易，有助于各种表现元素的应用和组构画面，进而使设计作品更丰富。
Different basic shape groups can bring people different visual enjoyment. The combination of basic forms can change in size, direction, shape, color, position and space to create new forms. This kind of composition is simple and easy, which is helpful for the application of various performance elements and the composition of the screen, thus making the design works richer.