'for loop'的伪代码

Question

如何为嵌套的for循环和递减的for循环编写伪代码?我的意思是，我可以把I从1写到n吗?对于从n递减到1的递减循环。例如以下代码片段:

for (a=N; a>=1; a--) {
for (b=0; b<a; b++) {
cout<<a+b;
}
}

我可以这样写吗:

for a in 1 to n
for b in 0 to a
print a+b

是正确的吗?还是我应该做些改变?

Answer 1

for a in N to 1   
for b in 0 to a
print a+b
// decrementing is shown by going from N to 1 higher -> lower