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发表于 2012-11-13 08:48:12
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1判断语句$ s, z2 ]# ?) S3 N- ]: D5 q
if <condition> then
. Y# E2 \# z& D; u! o <statement sequence1>;) A# x K* C% t8 X7 H y7 B# f
elseif <condition> then6 a. J9 M7 R I* j' j2 a
<statement sequence2>;
3 Q h! f+ ]* l4 _! \ else
# V. Q8 Q2 C) n* } <statement sequence3>;
& g; j. J# o' l end;
$ k( |# r& _% c如果分支比较多，用：
' l+ b! f: w2 s, Z6 }. e8 |3 F/ n, t inspect <expression>6 a8 `* _1 c2 @- p: ~! r. N: O
when <constant_list> then
% F0 w& G Z& c7 j/ N3 f- A <statement sequence1>;5 s2 e" J. Q% |$ ^: V
when <constant_list> then
3 w, j- V3 `, ~7 A4 y <statement sequence2>;
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else
" B# o& c0 z( p! F l7 I) h0 H <statement sequence3>;
" n5 T" z' _3 }; m, ]2 Lend;8 n) @+ | [ j9 B) F+ v5 c- t
* j% o( {, O$ a, I) P. i+ r2循环语句( {( U$ Y$ H9 T; G ]( P
(1) from <statement sequence1>+ k! k: q8 @9 e, E+ Y
until <condition> loop% r9 t' C- O4 |& |) E( K
<statement sequence2>;
3 s/ q% r: I: w, e. i end;0 ]- |% x) }, ]2 Z6 P: U
(2) while <condition> loop8 {4 z F" p$ h7 x( z/ R1 {
<statement sequence1>;( ~; C3 D- {8 Z' C
end;1 y5 j3 ^; X5 l
(3) repeat ( g( ]; a9 k5 H z: N1 T* e
<statement sequence1>;- X* s2 m+ \9 y# l3 o
until <condition>;
+ u! `9 t3 [% {+ d C (4) for <condition> to <condition> loop
1 A# I' E0 w- l <statement sequence1>;
1 Z8 x9 o2 F7 I6 p next;
3 ^6 e9 M- m6 K) }3中断语句/ t. w' A+ F# X0 e3 J
waituntil <condition> prio <integer expression>;
: h7 O. k5 b5 y- k" n x; @2 ]- N" g" c, `8 d* ]
" ~" Q/ g6 @% `7 ]/ k, C以上为常用的函数！9 @ j$ g+ @+ O+ r5 y# H2 m, }( ^1 w
还有很多，如有需要我把资料发到你邮箱里 * K1 z2 a% v. j1 L" N8 u! M
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