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发表于 2012-11-13 08:48:12
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1判断语句* y' l: a8 Y4 e+ n7 f2 d
if <condition> then
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elseif <condition> then8 Z& a9 K* H% b4 g7 c
<statement sequence2>;
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<statement sequence3>;% V+ k2 k K/ u1 l
end;4 j) Q( m& ^# V3 e1 M/ x
如果分支比较多，用：& p z. ]* \+ z: l
inspect <expression>% P! h3 R3 m: s2 b0 U; _# G) `9 Q7 `
when <constant_list> then% m0 j2 H1 `- @& }5 \' | b: b& T
<statement sequence1>;6 N v( V. J- x3 ]4 g
when <constant_list> then ~ n: {$ Y0 V9 B
<statement sequence2>;
8 W% l4 U/ C4 g0 j+ z$ c3 F1 }5 b ...
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<statement sequence3>;
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& y/ g5 c9 i3 l3 Z2循环语句4 o+ U# C1 ?3 Z% O) k4 }6 r
(1) from <statement sequence1>! I1 M5 u2 l: G3 I; E7 X
until <condition> loop
) ?: ^7 m/ F) G- u& l& `9 s <statement sequence2>;, p3 [4 L& K3 C" J! y1 I; R
end;
" X; v, B+ u) z$ n6 p0 B6 _ (2) while <condition> loop
8 u) X% j# D9 P8 ~3 T* ~7 l$ R <statement sequence1>;
- `; v- B' M& _* d* N7 j2 z5 q end;
8 I/ t" B; B% f- e4 a (3) repeat - C; q) Y) ?$ n% o; h; V
<statement sequence1>;
2 R. F: r5 e0 u# G: Q" P& B until <condition>;
7 e7 ]& s1 V$ y ~: V5 V- E7 X (4) for <condition> to <condition> loop
! [$ U+ i( A% w* m9 Z* ^ <statement sequence1>; _; T7 a+ _$ J( g F9 J
next;
6 W* R7 j$ s3 u [0 [3中断语句
# w; I2 C3 H4 r waituntil <condition> prio <integer expression>;" q* m9 R5 J3 `4 f
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6 X g1 v1 i; Y+ O, P以上为常用的函数！5 d3 n: a) T; Z) |9 I' g5 E8 F5 k# [
还有很多，如有需要我把资料发到你邮箱里 / Q" q+ X! k6 l7 B% V$ U" q
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