python九九乘法表和打印图形程序

#coding:utf-8
for i in range(1,10):
for j in range(1,i+1):
print("%dx%d=%d") %(j,i,j*i),
print '\n'

#coding:utf-8
rows=int(raw_input("输入正方形边长:"))
for i in range(rows):
for j in range(rows):
print("*"),
print

#coding:utf-8
rows=int(raw_input("输入正方形边长:"))
for x in range(rows):
for y in range(rows):
if x !=0 and x != rows-1:
if y==0 or y == rows-1:
print(" * "),
else:
print("   "),
else:
print(" * "),
print("\n")

#coding:utf-8
rows=3
for x in range(rows):
for i in range(1,13):
if i % 2 ==0:
continue
else:
print(str(i * '*').center(11))
for y in range(10):
print('*'.center(11))

#coding:utf-8
rows=10
#while True:
for i in range(1, rows):
if i % 2 == 0:
continue
else:
print(str(i * '*').center(rows))
for i in range(rows):
if i % 2 == 0:
continue
else:
print(str((rows - i) * '*').center(rows))