九九乘法表
方案1：倒三角式
for i in range(1,10): for j in range(i,10): print(i,"*",j,"=",i*j,"\t",end="") print("")
方案2：正三角式
for i in range(1,10): for j in range(1,i+1): print(i,"*",j,"=",i*j,"\t",end="") print("")
以下是 print() 方法的语法:
print(*objects, sep=‘ ‘, end=‘\n‘, file=sys.stdout)
原文：https://www.cnblogs.com/python1988/p/10029005.html