void main()

{

int x = 1，y = 1；

while(x & lt； = 9)

{

y = 1；

while(y & lt； = x)

{

printf("%d*%d=%d\t "，y，x，x * y)；

y++；

}

printf(" \ n ")；

x++；

}

}

/*

This is the legendary nested loop.

For outer loops, each loop outputs a newline character in turn.

For the loop inside, it is the output equation.

It can be said that this is a very good program.

*/