Description:
Start a loop.
Syntax:
for x
Note:
The statement starts a loop executing the code block.
Parameter:
x |
A sequence, an integer, or a logic expression. Loop through the code block against x or to(x), or if x is true. If x is empty, then the loop will be endless |
Example:
x is an integer:
|
A |
B |
|
1 |
|
|
Save the cumulative total 55 in A1. |
2 |
for 10 |
|
|
3 |
|
>A1=A1+A2 |
Add up integers from 1 to 10.
|
x is empty:
|
A |
B |
C |
|
1 |
=0 |
|
|
5050. |
2 |
for |
|
|
Loop will be endless if x is empty. When the loop count reaches 100, then break the loop. |
3 |
|
>A1=A1+#A2 |
|
|
4 |
|
if #A2==100 |
break |
|
x is a Boolean expression:
|
A |
B |
|
1 |
=15 |
|
|
2 |
for A1>10 |
|
If A1 >10, then start a loop through the code block; otherwise, quit the loop. |
3 |
|
>B1=B1+#A2 |
|
4 |
|
>A1=A1-1 |
|
|
A |
B |
|
1 |
=demo.query("select * from EMPLOYEE") |
0 |
Get the oldest age among all Texas employees in B1 after the loop is over. |
2 |
=A1.select(STATE=="Texas") |
|
|
3 |
for A2 |
=age(A3.BIRTHDAY) |
A3 performs loop over each Texas employee while computing their age. |
4 |
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>B1=max(B1,B3) |
The oldest age is stored in B1. |