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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
( W$ S" L1 _& G0 g. ^4 n if <condition> then# q7 s) W# S* p/ H/ z0 ?- W
<statement sequence1>;
7 d8 Z/ [' l: ~. J) ^0 O+ F3 ~1 ] elseif <condition> then
* f- V$ v$ t- [- f <statement sequence2>;1 a8 V9 y" r, b
else # U3 F' T: U5 t; X* W
<statement sequence3>;
7 c) F! r9 E& Y" } end;
$ L& |" ~+ J8 S: w# a如果分支比较多，用：
& [1 z1 V7 ^1 q, s' n/ S' ^3 \; M1 ]8 ^ inspect <expression>6 A* Y! t3 ~( p) ~% G
when <constant_list> then+ u( p$ F1 B8 ]; F
<statement sequence1>;
+ R0 X' m& y1 x0 g9 _ when <constant_list> then6 i5 L1 X) V8 }+ {/ s1 v0 a2 U
<statement sequence2>;
& ]/ r! V V) \ ...
4 u8 _! h7 n3 d else
5 E. z+ H7 C! w/ q( ^( Y: e- M: q <statement sequence3>;, U$ Z& \& u; H- R& ^: u
end;! a8 a+ `1 F( C* Z. h, d
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2循环语句
, K. i8 E$ ^: n. H7 S2 } (1) from <statement sequence1>
: G2 Y2 q1 i* N+ V1 b0 e until <condition> loop* P1 h4 y( \9 o$ i
<statement sequence2>;
0 A* o# ?6 B" A9 K end;
/ _* [7 ` D1 |. f (2) while <condition> loop9 c+ m P0 H* \
<statement sequence1>;. x4 {8 }4 ]8 @# T# T5 g6 f
end;
# A' C* L, e, k (3) repeat
' l; v6 t/ G B5 m <statement sequence1>;
- O& i' U) s, U% g until <condition>;
' A3 `7 X: P; i: W8 ?( [& b. @ E (4) for <condition> to <condition> loop
* ]" G2 w' y3 l7 u( l <statement sequence1>;& b& W$ w A! D2 L
next;
; S: H0 n) j2 m' w! C% j0 q$ T3中断语句2 M3 f3 ^; Y! ~% L0 a
waituntil <condition> prio <integer expression>;9 X3 N7 A5 P4 i: F, I* K# q3 P
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9 h- ^) Z2 r5 X- y以上为常用的函数！
7 F0 T* a8 o6 g3 _( J% F& I; Q还有很多，如有需要我把资料发到你邮箱里
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