Python numpy数组根据行为每列分配值

I want to assign row-specific values to each row in a 2D numpy array. In particular, each row should contain the value of the reciprocal of its row number. In other words, all columns in row 1 should have values 1, all columns in row 2 should be 1/2, all in row 3 should be 1/3, and so on. I tried this:I want to assign row-specific values to each ro