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发表于 2012-11-13 08:48:12
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1判断语句% L0 B# q2 L' Q! u, h3 m
if <condition> then
7 O) [: @" a. M5 {8 d <statement sequence1>;+ b& c, z5 t. R0 I) _
elseif <condition> then
7 W0 i; K, P5 }- P8 w7 R( m <statement sequence2>;7 T: ^# @9 L. A4 t1 f
else
- v8 N/ y$ d3 B8 u/ b4 x1 D <statement sequence3>;
) {5 W( n I. l$ t9 _6 y3 p end;
" ?9 j, g% S. {" P7 \1 s6 m如果分支比较多，用：
9 n9 u- @; b! @ inspect <expression>) E J# D# h5 u, n& P
when <constant_list> then
* M6 ~: }7 V; j/ e: h- h <statement sequence1>;
1 a5 }* y& v, D! }: d( M q' r when <constant_list> then7 A: A. ?' R8 ?4 C) T5 ~
<statement sequence2>;) T2 O8 l2 z2 d4 K7 |. l
...
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<statement sequence3>;3 O. [2 F7 h) i$ W
end;
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2循环语句4 R) H/ a* }. I9 u: C! N M
(1) from <statement sequence1>
[( c4 B- J5 f6 K& M$ }3 n until <condition> loop
9 h0 I; \2 v% |, l5 f" p, R% T <statement sequence2>;
. Q o* Y+ a W0 X2 f end;
2 L5 w! p; F; a5 Q (2) while <condition> loop; N1 V2 w8 A% Z* p
<statement sequence1>;
- c% h5 h+ _$ u2 J1 W- g end;
" r* b( \3 D( \/ Y9 w0 | (3) repeat 8 I* F6 d# ]0 t7 \
<statement sequence1>;
9 } [2 x$ D% I0 @, T. r* W% m until <condition>;
; ?6 |' f/ C1 k, U4 \ (4) for <condition> to <condition> loop
6 n) B$ T) O& p7 o4 A% {6 G8 K <statement sequence1>;
. l t, x8 T$ \4 N) ~8 Y3 R f, r& y next;
% q/ n! r9 v0 J1 g! O! l6 T3中断语句6 p0 K6 U- ~2 J: b F8 m3 H
waituntil <condition> prio <integer expression>;6 ^ J3 P$ J$ k0 P
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以上为常用的函数！* {5 k. _4 [8 N. w# ?3 \# W4 m' a: Y
还有很多，如有需要我把资料发到你邮箱里 5 N, L, q% E; \, {
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