for i in range

The statement "for i in range" is not complete. It requires a parameter to be passed into the range function, specifying the number of iterations the loop should run. For example, "for i in range(5)" would create a loop that iterates 5 times, with the loop variable i taking on the values 0, 1, 2, 3, and 4 in each iteration.

相关问题

matrix = [[0 for i in range(7)] for j in range(4)]for i in range(4): for j in range(i, 7 - i): matrix[i][j] = j - i + 1 matrix[3-i][j] = j - i + 1print(matrix)将这串代码写成换行的形式

matrix = [[0 for i in range(7)] for j in range(4)]

for i in range(4):
for j in range(i, 7 - i):
matrix[i][j] = j - i + 1
matrix[3-i][j] = j - i + 1

print(matrix)