1、鼠标点选到C1的单元格中，输入公式“=A1*B1”，如图所示：Mouse click to the cell C1, enter the formula "= A1 * B1", as shown:
3、将鼠标选中“C1”，然后当光标变成十字架形状的时候一直网下拉，如图所示：The mouse to select the "C1", and t茑霁酌绡hen when the cursor changes to a cross shape when the network has been pulled down, as shown:
