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发表于 2012-11-13 08:48:12
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1判断语句
: k( X& R9 i/ W, c if <condition> then
& @" D2 N- i' I <statement sequence1>;
& p; V& x$ o/ b3 H elseif <condition> then
, L7 |6 a h3 k# f' l& w <statement sequence2>;
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<statement sequence3>; D/ a5 Z4 A7 V9 @* v) c
end;
6 ^; n% k# J- {% V如果分支比较多，用：0 o& J5 r: r B2 |' t7 F* `; I
inspect <expression>
; n4 ~3 y* w4 o1 A0 v$ Z' A6 v when <constant_list> then' _% m* L# l. j9 @8 s7 ~! O0 e
<statement sequence1>; h K/ P! t( V/ d
when <constant_list> then; n; D, `# X6 C# j* A6 H
<statement sequence2>;
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<statement sequence3>;7 |; v1 F: E3 f. }4 o
end;
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2循环语句
. I! ]; D3 H+ _ |" w) a& z (1) from <statement sequence1>
& \/ @2 m- F" i8 u2 I until <condition> loop u. G" m/ {4 }# E! H% F
<statement sequence2>;! X j) @, X1 @9 L1 T
end;5 ]: P9 f( \' [- w* V9 g
(2) while <condition> loop, K9 G' L% f' [1 y- {) y7 g2 t2 u$ z: |
<statement sequence1>;
' [1 Y4 Z' j. v, d end;
9 g" }' [7 m/ e0 y. d (3) repeat - L' E( w/ [3 h( K2 u
<statement sequence1>;/ ?" M: y$ @9 U
until <condition>;
1 z9 D4 [1 G# y8 b" H (4) for <condition> to <condition> loop
/ J- [% z; j9 ?& W <statement sequence1>;' a! B( T2 U4 m* \4 C, d* }9 B% M
next;
0 g, w; e+ P4 Y/ ]# H( T# U! H3中断语句1 u0 m* D; U/ Y( _) M, ?3 A! X
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
+ F m9 ^; X1 M5 h2 `还有很多，如有需要我把资料发到你邮箱里 & A* H& \8 V, l# Q( [$ e0 M
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