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发表于 2012-11-13 08:48:12
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1判断语句
9 ?5 r8 Z8 [. o5 N8 ]0 a) a if <condition> then6 t9 G7 G! K6 j; `. O
<statement sequence1>;
$ `; ~/ s6 K3 N4 {3 L elseif <condition> then
! P" N/ k. f- N1 T; ? <statement sequence2>;9 }6 D6 c1 g9 ?' M _$ J9 t2 z
else 0 p7 f8 q% z3 k6 o
<statement sequence3>;
/ f) r$ e2 Z2 y end;6 M; k: L1 O; D" u
如果分支比较多，用：
- t* A6 U& W9 e% B: Y: X6 B* k' O inspect <expression>
3 Q" w5 z7 a' w- h7 W! Q" n when <constant_list> then& L( ?* w, e% Y
<statement sequence1>;
& Z2 T0 m9 d4 M' q4 y- x$ ^ when <constant_list> then9 a {% d) h" B9 a! D5 I( `
<statement sequence2>;
9 R( k8 ]4 O/ y* K$ @ ...
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<statement sequence3>;1 ^" M+ X p+ l1 Z
end;
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7 U5 c I; e" b# d1 S' L; ?2循环语句7 E# w3 S6 P: t5 Y- v# C. S" T
(1) from <statement sequence1>
6 s5 w0 L% t" `; n until <condition> loop& j6 t$ s8 Q. _/ r) x
<statement sequence2>;
: m# [. E* T% o- F5 y# G end;
# m# x4 y% X- ?# f- t1 t (2) while <condition> loop
4 {( [7 f) R$ @/ o" \. H! G- j/ {. H <statement sequence1>;4 A1 g/ p3 X; N* p. { Z
end;
; q, Z. g+ m! O7 f6 C! z( a# G (3) repeat
% J/ i+ G8 w, \5 n <statement sequence1>;* T: M4 L( M$ `! R
until <condition>;
5 @; `% z6 K7 G' _7 R* n; d( ]9 g1 N (4) for <condition> to <condition> loop; `& q/ k1 W1 K! r; n4 n
<statement sequence1>;9 \1 A7 i* D# {9 e) Y2 v
next;
' m$ j) q8 ^: f& g. \& S3中断语句1 |8 Z# ?, |& C" V, p" h, ?
waituntil <condition> prio <integer expression>;' y" R! b8 c S* a, c
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以上为常用的函数！
4 t! T3 J! ]5 t还有很多，如有需要我把资料发到你邮箱里 - U. z, `" }- ~+ B- c* p; X* I
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