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17 <p>Statements are the ``steps'' of a program.
18 Most statements compute and assign values
19 or call functions,
20 but we will eventually meet several other kinds of statements as well.
21 By default,
22 statements are executed in sequence,
23 one after another.
24 We can, however, modify that sequence by using
26 which
27 arrange that a statement or group of statements
28 is executed only if some condition is true or false,
30 (A somewhat different kind of control flow happens when we call a function:
31 execution of the caller is suspended while the called function proceeds.
32 We'll discuss functions in
34 chapter 5.)
37 A statement is an element within a program which you can apply
38 control flow to;
39 control flow is how you specify the order in which the
40 statements in your program are executed.
41 (A weaker definition of a statement might be
42 ``a part of your program that does something,''
43 but this definition could as easily be applied to
44 expressions
45 or functions.)
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54 Read sequentially:
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