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发表于 2012-11-13 08:48:12
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1判断语句
, C4 }- g! \7 F% p* K) v if <condition> then
# d- U# B9 L+ {. N. T2 J <statement sequence1>;7 [& X8 @" ? U; v' w
elseif <condition> then5 N6 i g7 k% w- n8 c
<statement sequence2>;
" T9 y; M% w5 }4 n else " k9 M$ n% C; O1 Q! i P) I3 q
<statement sequence3>;
+ u% I$ Z0 R* X7 V4 P6 V end;: c9 w V' C4 n* ?& V
如果分支比较多，用：+ f( {4 V: m4 L! i7 w( Q% [5 I
inspect <expression>
, x' v2 \% \* P4 K( h8 t6 D* M' D when <constant_list> then
- ~) D0 c) \$ C l* L, D <statement sequence1>;
" q; \2 s# \& V) W9 H( a when <constant_list> then# T4 ~! p" j7 I Y8 f9 B3 \
<statement sequence2>;, E) F: u M6 I4 W8 `7 e
...
+ q- Y5 ~: H$ z4 ?6 q else
9 Z- ?" h2 p" z# c4 C5 @/ M5 E) @ <statement sequence3>;
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" D) I, [3 i* ~- L2 o& e! u2循环语句) y, v# b& D/ [& S* d
(1) from <statement sequence1>, b, L6 P/ T& l0 m; Y! W
until <condition> loop% f* g. I4 {0 ~. x' O
<statement sequence2>;; s9 J9 k h* w# L6 L! k& t
end;2 W; ]: I m& d0 q% y% x, V% S% V
(2) while <condition> loop0 V l9 X) G1 H% O2 m" A5 Q
<statement sequence1>;
8 z8 K j* _4 C end;0 i! g. q3 X, ^3 E& S z
(3) repeat
: K0 {' q0 @9 z6 ]% [; S+ f' w- t9 x <statement sequence1>;$ w1 g8 f0 X g5 k; Y! [& i
until <condition>;
5 D( G0 C H. g Q. ]9 C: z (4) for <condition> to <condition> loop
/ ]* X" M! Z* [. y <statement sequence1>;
5 ?; f+ K! {, B; t8 B" H next;
+ W4 ] ?1 j5 t* u* ~3中断语句
$ O) h; K- g$ O/ P: ]. S/ D/ h T waituntil <condition> prio <integer expression>;
- `2 E9 l' Y9 Y+ C9 r1 i8 y! V; o6 p" D* L' Z& y& x4 [0 [# {* J
; I8 h% Q$ O! v以上为常用的函数！
& b/ Z- e ^" @! Q还有很多，如有需要我把资料发到你邮箱里 $ w" s2 F+ A' u8 x
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