开发笔记:for循环语句实例

for i in range(9,0,-1):
for k in range(1,i):
print(end = " ")
for j in range(i,10):
print("{}*{}={} ".format(j,i,j*i),end = "")
print()

a = int(input("请输入行数（必须是奇数)："))
for i in range((-a//2),(a//2+1)):
print(" "*abs(i)+"*"*(a-2*abs(i)))
a = int(input("请输入行数（必须是奇数)："))
i = -a//2+1
while i <= a//2:
print(" "*abs(i),end="")
print("*"*(a-2*abs(i)))
i += 1

a = int(input("请输入行数（必须是奇数)："))
for i in range((-a//2),(a//2+1)):
print(" "*abs(i)+"*"*(a-2*abs(i)))

n = int(input("请输入星号塔的层数："))
for i in range(n,0,-1):
print("{} {}".format(" "*(i-1),"*"* (2*(n-i)+1)))