无法获取二维数组中的所有值

Question

grid = []
for i in range(int(rows)):
    row = []
    for n in range(int(columns)):
        row.append(int(contents[n]))
    grid.append(row)
    
print(grid)

The contents array has 9 values inside of it, all of them being strings. How do I make it so that I get all the 9 values of the contents array inside the grid, so that each value would be present in the grid array, rather than currently just having the first 3 values in 3 rows.

Answer 1

Use a separate variable that increments separately from the for loops, instead of using n to grab the values from the list. So, initialize some variable to be 0, like m = 0 outside of the first for loop, then every time you append contents[m] , you would increment m by one.

I'm going to use j instead of your n , and n instead of m in this example:

n = 0
grid = []
for i in range(int(rows)):
    row = []
    for j in range(int(columns)):
        row.append(int(contents[n]))
        n += 1
    grid.append(row)
    
print(grid)