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发表于 2012-11-13 08:48:12
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1判断语句
0 U6 M; @, C7 ?9 J if <condition> then
1 ]- ~: Q7 `% t' K" Z <statement sequence1>;
2 k) i& d7 U' J7 a2 X1 }5 V5 a elseif <condition> then4 i! Z7 e# D! h3 x3 ^! u# l6 O! K$ |5 q! ^
<statement sequence2>;4 N* I y0 l4 J* L! x3 i# {: \$ a
else . a1 S! Y- |0 N! }
<statement sequence3>;' T1 u! p' x y1 ^' r6 Q
end;
) ]! q0 Y! Z' h( t8 n/ I如果分支比较多，用：
& B& w9 x9 P9 k% {1 P inspect <expression>7 o* v. H# v0 w2 c3 w7 t: f1 I
when <constant_list> then
" Y$ T) i+ M% e# W# H <statement sequence1>;
% x! h/ q- i: c v when <constant_list> then. q* P# M1 l; X- {
<statement sequence2>;
# u+ P4 s/ f- f0 J ...
" |4 H- V) u- l8 n/ }1 P- V else0 y1 u5 E) z# e% ]! l8 d
<statement sequence3>;
9 b! \% v- [, L V. P1 i0 A9 B% yend;
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2循环语句6 L/ R e7 N8 T! t E
(1) from <statement sequence1>
0 m ~+ u( p9 E) n4 | until <condition> loop
' C3 Q0 R$ V% Z* r- I* D. F <statement sequence2>;3 o3 f$ K7 {& J* `$ L0 a" G
end;3 W z* }* B, ?2 o
(2) while <condition> loop
0 N& A3 B: y9 X) M* \& D4 ^ <statement sequence1>;& j6 J6 Z- T" h2 C
end;
/ w! U" c- n8 L1 X7 {4 [ (3) repeat + ]4 I- a# G. L# o: Q q
<statement sequence1>;
9 m# q" m& E) g" W until <condition>;
3 K/ `$ F' s- M (4) for <condition> to <condition> loop
8 b/ w# C9 L9 o: V" F D% w1 C <statement sequence1>;7 Y% N6 n( n! f1 s" U6 h' n
next;
% s7 Y. q0 T; n3 A1 j: h D3中断语句
h# ?7 k& ], n- I$ S7 \9 a, r waituntil <condition> prio <integer expression>;( X$ _$ x6 t: l1 i3 L. Y: j
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以上为常用的函数！ o) I) K; g, F1 G
还有很多，如有需要我把资料发到你邮箱里
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