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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
) @ w/ K! ? f6 Y, \ if <condition> then
4 O T' ~6 U. ~! e$ a# G: o! s <statement sequence1>;: }2 l# q5 ^& e5 Z
elseif <condition> then/ B% |6 d* u9 h% r( i( U7 z
<statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：
( L0 ~& }: L. ^/ \3 O4 T2 g8 I2 T inspect <expression>; \1 O; {& w$ }3 Z1 G6 L
when <constant_list> then+ u' T& G$ @- b# O/ ]
<statement sequence1>;% j3 V. a" b$ g- p9 |( U3 Z
when <constant_list> then" H" F/ ^( G9 x( X. U+ m) `
<statement sequence2>; ~5 r7 E/ {: j' o
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else
' k6 M' h; N) X9 R <statement sequence3>;
. y* s2 s. n; @8 i1 k# H" m! Aend;
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( p1 B7 m7 W2 @) I l% W4 D z2循环语句
% g9 c2 ]* ?* a- m6 e' B5 A! @* o$ W! ^1 D (1) from <statement sequence1>
( g* N/ h5 F& a+ x/ Z, ] until <condition> loop
" q- a, O9 L' _: ^+ n: f: \ <statement sequence2>;0 ~. e! g8 S2 m& P! d. ?* Y
end;
- P; }% W: l2 [! d0 I( x C7 k (2) while <condition> loop
4 r8 S& t# b2 N0 Q <statement sequence1>;
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(3) repeat 7 g% {, ~- K* |8 `9 U2 ^" W6 x/ F
<statement sequence1>;
. P' Q0 H0 j1 e6 q; q until <condition>;# X0 l. L) h, y% p
(4) for <condition> to <condition> loop' l& N5 [( u& V4 a1 k+ `3 @
<statement sequence1>;
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3中断语句+ w, M9 r! K" n& D" ^
waituntil <condition> prio <integer expression>;
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: ?' H1 C2 i: F. ?- J以上为常用的函数！* q1 }* \1 o+ ]% L% s
还有很多，如有需要我把资料发到你邮箱里 % [& M2 ]% N* Q0 m3 f' Q. t
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