11=1
12=2 22=4
13=3 23=6 33=9
……
for i in range(1,10):
for j in range(1,i+1):
k=i*j
print("{0}*{1}={2}".format(i,j,k),end=" ")
print("")
# 用python对九九乘法表的编写思路
for i in range(1,10):
for j in range(1,i+1):
print(f'{j}*{i}={i*j}', end=' ')
print('')
for i in range(1,10):
for j in range(1,i+1):
k=i*j
print("%d*%d=%d\t"%(j,i,k),end="")
print("")