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发表于 2012-11-13 08:48:12
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1判断语句+ g5 A2 W* s; h; i
if <condition> then
: F$ g# U4 k; m7 r6 I" F3 |) S A <statement sequence1>;3 M2 \! I# o! x3 T3 ]
elseif <condition> then
2 W( t* K* z) u* ^ <statement sequence2>;
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<statement sequence3>;
4 L* V3 K. `3 Y, v7 Z end;
; h* Q- A2 ~4 i# y如果分支比较多，用：
& F) k6 p# v) Q& e! w! U inspect <expression>
5 k Y7 j5 J2 ~) b+ B; G when <constant_list> then
* a+ T8 v" |/ j0 {8 _ <statement sequence1>;( |" {& w# Q1 p/ I6 x
when <constant_list> then+ t' _, M* ^/ F
<statement sequence2>;
) l6 r$ t7 Q4 s) ?- a ...
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<statement sequence3>;
3 P( \: [- c& A) \2 \# z) _7 ^end;" g- J! I/ V8 U# ~ u! t$ V
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2循环语句
4 i( @/ ~4 `1 D4 w+ V (1) from <statement sequence1>
/ j( M' f7 `/ _ until <condition> loop& p. H4 h: G2 m
<statement sequence2>;
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(2) while <condition> loop9 d0 B9 r3 `' N2 w
<statement sequence1>;5 `: \- B: g4 W# R! F5 G# @6 j
end;
$ `7 g B2 {! u$ ? (3) repeat ; C: U& u1 c3 k+ L' C
<statement sequence1>;
9 J, m2 q9 H5 } t* k, u/ y- Z until <condition>;1 O: p( P! I5 j* U5 v
(4) for <condition> to <condition> loop, X( Z: a9 ~) T# f7 r
<statement sequence1>;! v% v' e0 B, D
next;
8 Y8 C* m) F+ G$ w6 D3中断语句
' x6 ^7 }7 c7 h/ t3 {% l# i waituntil <condition> prio <integer expression>;
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7 }3 M; q" d& R* W以上为常用的函数！; ~( N; [' y4 V+ v
还有很多，如有需要我把资料发到你邮箱里 7 Z/ z: ]4 I& |; W7 m9 ~7 j! T
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