How important is demand communication? It cannot be overemphasized. For example, if a = 3 and b = 5 are known during the exam, find the value of a + b. This is the requirement [do the right thing]. You just calculated the value of ab. Although your result is 3-5 = -2, the calculation is correct [the right thing to do], but it is not according to the demand.
My CSDN blog column: https://blog.csdn.net/yty_7
