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发表于 2012-11-13 08:48:12
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1判断语句8 x2 K4 k: d( J/ u
if <condition> then3 [ ~& p+ o& ]5 X j: J* u
<statement sequence1>;$ e" ~' L" D e" V" {1 j' t
elseif <condition> then+ |5 e, p- A* ~3 `
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：3 q( y# S! W# p. @
inspect <expression>0 B- b' \) x1 ?6 u. R
when <constant_list> then2 q; @+ ]) ]4 _, }
<statement sequence1>;
% f% O' f' k7 n8 d when <constant_list> then
4 {5 F! N8 t( M8 u0 | <statement sequence2>;* V7 S! ?$ }- E4 v
...
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<statement sequence3>;3 B1 U) h, |' W' j$ ^3 M+ i/ w
end;# O6 q: q- m' U( A0 N! `% F
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2循环语句$ g. I1 A( ?* U3 `8 |$ t
(1) from <statement sequence1>& O c# e! d4 m4 k# a: Z$ t
until <condition> loop7 s/ Y' m" g, u9 {. U+ g! D
<statement sequence2>;
& G4 v. c& Y$ `: Y! m end;
/ \3 `8 z* Y# x8 V& e; `. K) ? (2) while <condition> loop
' d$ d3 i, F3 r4 N& w <statement sequence1>;# L/ u: c: }/ w8 K
end; n0 ?; @2 v# n% y
(3) repeat
; D% h9 W8 M( y- Q! S. Y) B0 V <statement sequence1>;
1 t5 Z! y& U# d5 G$ l; G until <condition>;
1 I8 H( c0 Z8 u/ q (4) for <condition> to <condition> loop
2 i" Z2 h4 ]" }' i2 @ <statement sequence1>;3 C, t6 Q: v8 u E, @
next;
$ E! U# B( o, O5 q5 B3中断语句
6 c9 @2 Q( a# F" \ P# \6 I* d: b waituntil <condition> prio <integer expression>;9 P L1 G( H2 s$ U9 Y* G7 t3 w
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. m9 z* z& P/ h2 B2 z以上为常用的函数！' `2 T8 z$ M* h- p7 I7 C6 z
还有很多，如有需要我把资料发到你邮箱里 - L1 V* Y1 g+ K1 y
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