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发表于 2012-11-13 08:48:12
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1判断语句& ^+ `' h( \0 u; y7 E; i
if <condition> then6 A5 x- U: B% ^# S4 c# V
<statement sequence1>;
4 U! z$ U6 N8 d: j1 K- R6 P; Y elseif <condition> then3 K/ @3 P& w4 s, q9 c
<statement sequence2>;0 Q. U* n3 A) w, O
else
. c$ j8 b" A( R. o <statement sequence3>;
* \) u3 C1 Z" s: w2 W7 K4 i end;
4 v* j1 B4 O) q6 \/ _. o% T6 B如果分支比较多，用：3 W+ G7 Y$ n% W& ~/ b/ C
inspect <expression>
* C0 g6 o2 C4 w+ Z% x1 E% z8 W3 [6 @ when <constant_list> then
! D ] y& d4 }7 R5 m5 h1 R <statement sequence1>;& f8 ~4 f8 ^7 x3 f& Y5 S' C/ J0 b; E
when <constant_list> then
! \2 L; a) n g <statement sequence2>;
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else
. a0 m5 a( [1 I' T( ]: Z4 ~2 t <statement sequence3>;! E7 q8 q) M) \7 a9 `* o* q- I
end;
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. T9 h- c' g+ |( l: j2循环语句
c6 ^6 S' `- \' K* g+ i( b (1) from <statement sequence1>
: q) ^6 v/ V2 ? until <condition> loop" k/ c# ^# C2 G# f$ R% t
<statement sequence2>;* T! r7 x4 `( g5 c6 a4 H
end;
7 J. u; d. Y9 h: n- @ (2) while <condition> loop1 L1 |0 c. r+ S+ ?& P1 l) x
<statement sequence1>;: F% n/ {" j% z: e& d8 ?7 A
end;0 l, i% m7 |& C
(3) repeat
, T! O; D) L* @) }7 }. L! N <statement sequence1>;* A3 C# e6 ~1 {' v) z; T* s
until <condition>;
1 {' u6 n" c7 Y# Y (4) for <condition> to <condition> loop
/ z' Q/ b9 N) K1 ^9 J$ W$ g <statement sequence1>;
3 ~& O* l& w- q, r next; E6 \0 @) H7 J2 t. `) q+ o8 H0 C
3中断语句
+ X$ c/ Y: @3 c& S' C X; A& b/ n waituntil <condition> prio <integer expression>;0 E: A5 [; G- D/ G8 g- u
4 X5 P3 A8 S) {9 p
$ m* B E; u9 P+ C; W4 D以上为常用的函数！
: a2 i$ Z9 [2 z$ l3 c还有很多，如有需要我把资料发到你邮箱里
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