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发表于 2012-11-13 08:48:12
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1判断语句7 o! @3 g) k0 |. ~, u- u3 c+ X
if <condition> then% K [3 a3 d7 o& e
<statement sequence1>;" B+ X M2 D% n
elseif <condition> then* F( I5 }: t h% R
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
) g6 K; N1 n, T9 O# @4 w/ R inspect <expression>- o, y% n' b7 |; M
when <constant_list> then" x& O0 z5 {# U( i2 m
<statement sequence1>;
1 A4 Y9 p; E% j9 C0 u7 ^! N- Q, A6 b when <constant_list> then
% q0 u/ e) y5 h# f! K- F <statement sequence2>;
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else+ D; s1 F: }5 d& {$ ~3 d) n3 U
<statement sequence3>;
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0 L& d% d' [. ]- j% Z/ e6 h2循环语句7 `2 }9 F; G7 a$ @# m: I
(1) from <statement sequence1>; V& n2 \* n- S# _% {, [
until <condition> loop' l: O$ U$ U- S B
<statement sequence2>;
( Q* B7 h0 r( e y7 c end;
/ c" s& v/ m+ ]/ S# f (2) while <condition> loop
2 C& b: B. S$ g' k <statement sequence1>;) d: m. O& R& T5 i4 ~# r6 O: {
end;' d' } |8 u& R0 p q
(3) repeat
% q. G: @: p5 v& c) p% j* C <statement sequence1>;
; P6 o+ y4 i3 `- S until <condition>;
& H# R& z5 Y- B4 Y: \4 m& f (4) for <condition> to <condition> loop' C& c8 m. C% G: t4 b
<statement sequence1>;
( H# b7 `% I! _4 B/ H# D9 | next;" a* S' p4 O* U4 U. C7 ^- ^
3中断语句
. Z$ i6 t+ r b# Q* | waituntil <condition> prio <integer expression>;
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以上为常用的函数！
' S4 J' }) F2 [2 g X4 U, D还有很多，如有需要我把资料发到你邮箱里 ( a' y5 }# ?7 o% _, B
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