python嵌套循环

题型

​编辑


A模式：

for i in range(1, 7):

    for j in range(1,i+1):

        print(j, end=" ")

    print()

B模式：

for i in range(6, 0,-1):

    for j in range(1,i+1):

        print(j, end=" ")

    print()

C模式：

while True:

    for i in range (1,7):

        for j in range (6, 0,-1):

            if j <= i:

                print(j,end="\t")

            else:

                print("",end= "\t")

        print()

    break

print()

D模式：

for i in range(6, 0, -1):

    for j in range(6, i, -1):

        print(" ", end=" ")

    for k in range(1, i+1):

        print(k, end=" ")

    print()