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发表于 2012-11-13 08:48:12
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1判断语句8 S: R! O. \: L
if <condition> then) ?/ M- ?+ `$ _" Q' Y* A1 a
<statement sequence1>;
( N6 W4 |' Z% D, o) P% U1 ?$ { elseif <condition> then+ w; ]9 f* C+ X4 `
<statement sequence2>;2 s! s' \$ }9 g( N9 W5 i% W
else
% Y. b( |1 q0 ^+ R J% h/ c6 c) q <statement sequence3>;) o/ n z3 G) W: U. u4 K2 u2 }8 D
end;
0 z3 ^6 A) P0 A; p( _0 ?( v7 y/ {. _如果分支比较多，用：
6 P% R; _# b* g6 V9 K inspect <expression>
& R! j( {, f+ `& [0 |$ A$ A when <constant_list> then
% k( i, Q$ w6 @7 }; t, L <statement sequence1>;8 ^& p( I% s6 y( [
when <constant_list> then
2 z, b6 A4 I- C! O <statement sequence2>;, V. A$ x- u% L( [2 K
...
# F9 b% W) J1 a2 M( m2 I else
& G& {* k! y3 u4 e5 R <statement sequence3>;
( O2 z4 W0 {, Cend;
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2循环语句+ \; T' n0 N V' V" M) Y
(1) from <statement sequence1>
' y4 \, n$ {! v! j6 w7 L, o, g9 m until <condition> loop9 V3 f3 [; D2 F( S5 C. _: k
<statement sequence2>;
' p1 Z$ B! R$ ~ z" C" x end;7 \4 h& l7 u% [9 ?7 g& ~) X: {
(2) while <condition> loop6 s' w0 z& i, C
<statement sequence1>;
5 M6 G- V2 B* F! b5 [1 w end;* d G0 F( G% u/ y M
(3) repeat 0 X: L- w! z- b, l" _$ Q: b8 K
<statement sequence1>;: f) j ^, ^2 X
until <condition>;* \& V+ e) E+ P- `% r. g; C# N
(4) for <condition> to <condition> loop
, F% [7 G. c. W9 P/ T* A <statement sequence1>;
) h, T! @ M6 M1 z5 q; { next;
, s( S# D4 _: A4 e3中断语句
6 b9 O% y) H6 S waituntil <condition> prio <integer expression>;: }7 T" Q% v8 k
7 F0 L" F! n7 J' z. z
. b# F4 ]; \) m+ X: t以上为常用的函数！
- d$ j8 o: \& u3 b y还有很多，如有需要我把资料发到你邮箱里 ; |. B9 `* O j& R+ e! m
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