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发表于 2012-11-13 08:48:12
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1判断语句9 q6 R" R* K# r2 h
if <condition> then: u5 p' q, x% P0 i
<statement sequence1>;
! w$ {) Q1 i) Z* V3 g elseif <condition> then5 r+ Q. o7 q, U$ p
<statement sequence2>; y# U2 U, E7 J( I# F
else
( Z6 g0 p1 m% K2 p. n4 l <statement sequence3>;
6 ^/ ?4 f3 W3 B! } end;8 o; l; Q: a) L P9 Y
如果分支比较多，用：4 z/ N4 }1 {4 k& j) a% e
inspect <expression>3 V3 |" _5 a* ~1 f+ P; P0 Y" M
when <constant_list> then' G. L6 h) H; b9 D( ~( P
<statement sequence1>;& @0 y1 ]- G; g/ `) |% f4 m
when <constant_list> then- p" f2 H. u: P# U9 Q8 R
<statement sequence2>;
s. I5 e& w6 h2 T( J; Y% F" ? ...
0 X5 o& g! o7 v6 B else
8 r4 L3 w4 D! l+ V5 D <statement sequence3>;
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2循环语句5 u2 V; R8 G( z g
(1) from <statement sequence1>1 j5 p& e6 m1 i) x) s; S5 t' y
until <condition> loop5 R. p' I+ z* o, E x
<statement sequence2>;
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(2) while <condition> loop: G8 G: K! x% i! i% L0 d% B Y: p
<statement sequence1>;8 H8 S& N: ?" D R; r
end;6 D- x7 ~3 M- C1 j9 |8 T4 g* [/ z' G
(3) repeat / F" x" i) I m) o
<statement sequence1>;
- X5 j1 c, A* i& M1 H" y* Z0 ? until <condition>;+ ~2 A/ u Y$ f- i- [9 v/ v# B. H
(4) for <condition> to <condition> loop+ M0 y/ B7 `6 F7 ?, X
<statement sequence1>;
- O% {, q e" u* h9 \+ Y next;
4 v- o* i0 s/ R2 P# C3中断语句
( w( i; o# A, j8 G" ^& |6 ^ waituntil <condition> prio <integer expression>;
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以上为常用的函数！
. d6 E8 a5 k7 O, y1 F/ D) k- A) ?还有很多，如有需要我把资料发到你邮箱里
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