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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
) s& A6 R, P- z3 I' o8 |9 j if <condition> then
$ W! j- g. j7 z( W1 G <statement sequence1>;# ?' P& w, i1 D+ l5 }- @
elseif <condition> then/ N; L; V7 v4 W$ l1 L+ i% c ^
<statement sequence2>;
$ C( }% ]# R- H- e+ _+ z$ g else
9 c8 @. O3 g; @3 l: n; ~( m <statement sequence3>;$ |+ ~/ I/ q5 \
end;8 l3 v" X9 W$ [, I
如果分支比较多，用：
0 u, E, H6 z. e& r/ \9 X$ e. t inspect <expression>
+ t3 ?6 s' R* |7 c# M* h4 w, s# [4 l when <constant_list> then
1 a- I- [% K! B: h <statement sequence1>;: [3 b# x, s! s) o
when <constant_list> then
" A$ \- A, L8 n) s3 `" z <statement sequence2>;& D- h7 ?6 R1 |9 d, C) B
...2 \0 Y) Z! d3 W. S
else3 U. S3 S( U" f! Q N$ V
<statement sequence3>;
3 h& s$ Y% l* m% A# w6 t/ \! _end;
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2循环语句
: j4 V" D6 m2 _ ^- H5 U! O (1) from <statement sequence1>/ h; H- V7 `- \9 M" J1 V" m6 g5 l
until <condition> loop
; ]) t4 G1 \2 g9 E- C) G4 M <statement sequence2>;1 R0 f0 s8 _" T5 B* h
end;
! z5 w" Q. V- K (2) while <condition> loop# i% J, S" p# b: L7 b! H( q
<statement sequence1>;
" L4 o$ M b4 _/ Z4 ]! q end;
/ J) F/ @+ r. B7 \3 K2 t' m1 C (3) repeat
& K* z7 Y. W/ F( |6 S& \3 \- | <statement sequence1>;
/ T; }) z# t$ z6 C: A+ ?1 w0 } until <condition>; _+ T# {, X3 r/ n' g' E. H l
(4) for <condition> to <condition> loop6 V, _& l& Y/ a! I3 V: _! u
<statement sequence1>;, Y3 v( o; l( ?
next;
2 `4 l) l' K% B9 F& e1 l1 d3中断语句) M3 U, O$ v1 n0 s s- E8 J& x* \
waituntil <condition> prio <integer expression>;* v$ S- q! c7 R; G8 i, s* A
& c: q4 K1 Y: ?( q. z! s$ x: k6 j2 A8 P5 d. E
以上为常用的函数！
' q8 O' P8 ^2 b; |/ N) V$ A. m还有很多，如有需要我把资料发到你邮箱里
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