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发表于 2012-11-13 08:48:12
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1判断语句
, `( C1 u. c) U# O if <condition> then3 R$ p; Q7 w" j! O/ N. W' |7 j
<statement sequence1>;$ O4 V$ t6 B+ `& ^# C& K
elseif <condition> then5 z/ o4 p- |+ a& G/ a
<statement sequence2>;& ]# d4 M v! S: _5 T- ~, K" q8 D3 N+ F
else
+ K0 G0 g" p, I/ u3 u <statement sequence3>;
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如果分支比较多，用：
6 V: t$ d! \# K2 m8 o inspect <expression>
" U4 L7 d* z6 H) v0 a. E7 a when <constant_list> then0 N1 [4 r i3 y( n" x
<statement sequence1>;% ]0 o1 p; O" _* D* S
when <constant_list> then8 C; g* f( W6 X+ j% ~2 q; m
<statement sequence2>;
# p& D' g6 \ ]5 j ...
+ s% P$ [3 G/ z L [ else" r1 z; i3 k0 A
<statement sequence3>; z+ o* k, S! b7 S
end;) Y3 D4 W3 b) g. P+ m1 i
8 O l) Z& ~& S% a$ a, D& g3 W2 E! Q2循环语句. S0 T" i7 t |) g$ C. t2 H
(1) from <statement sequence1>
0 V! T. M4 n7 X; j until <condition> loop
! k, i6 d; A* a4 R" ?! m' t <statement sequence2>;
( H$ S4 s3 z7 V- _ end;: H9 \. t9 E) S' [) L4 C
(2) while <condition> loop
2 g( ^ Z2 S+ }4 P) v- e. |0 @ <statement sequence1>;0 k2 {4 g; `& F% B' B& U
end;
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<statement sequence1>;
1 Q. ?7 X5 K3 o until <condition>;
, r; V2 u. C7 J2 J! f" x1 f (4) for <condition> to <condition> loop
: B6 f6 [& H w% d7 @1 | <statement sequence1>;$ r A, B2 [0 l9 D
next;6 b+ F0 R5 a- a2 w& P5 N" Z- H
3中断语句6 @& d6 j% G$ w6 Q0 ~
waituntil <condition> prio <integer expression>;
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以上为常用的函数！- c. C) ]* x7 b7 s3 e# e
还有很多，如有需要我把资料发到你邮箱里
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