近几年的江苏高考,平面向量是必考查内容之一,淡化计算,凸显概念,而且似乎更加倾向于非坐标运算的形式,也就是我们说的“基底思想”.而基底的选择,对于同一个坐标平面并不唯一,只要彼此不共线即可,所以选择不同的基底,就会有不同的运算效果. In recent years, the college entrance examination in Jiangsu, the plane vector is one of the necessary examination content, dilute the calculation, highlight the concept, but it seems more inclined to the form of non-coordinate computing, which is what we say “basic thinking”. And the choice of the base, For the same coordinate plane is not unique, as long as they are not collinear, so choose a different base, there will be different computing effects.