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发表于 2012-11-13 08:48:12
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1判断语句' x9 r# n0 k1 f0 [4 {8 m
if <condition> then; l1 K9 h9 {) D+ |: }
<statement sequence1>;8 A2 Z& l( |$ n3 _& \! O4 `8 O
elseif <condition> then
* H' ?6 L# V. t) g8 C1 A( E, ]( c. f <statement sequence2>;# y- {) K7 \9 x( m5 @4 z
else , R+ {8 k7 @! ]+ t; x6 j2 r
<statement sequence3>;
Z: N0 {) B2 A& q" G( s2 v* ~ end;
( L; {0 n- l' u" t+ w如果分支比较多，用：: R* w( P) t* O/ B( Y; R. U% Y
inspect <expression>4 C0 o* o3 O) |1 h, L3 t
when <constant_list> then9 i7 T. A% \$ g+ |, O" a% K
<statement sequence1>;
: y) |1 u$ a( ?1 b) f9 A' W* [ when <constant_list> then; W t& |8 ^ d' D" N! ]/ H; Y
<statement sequence2>;
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else
* r/ V; q% M/ @& x7 y" U <statement sequence3>;
& B8 L* J1 w$ ?8 ]end;
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2循环语句
5 V# B; \. k$ J4 m (1) from <statement sequence1>8 c- t' |) L* X5 u7 y7 ? W
until <condition> loop9 B8 d! l3 i; @# L5 K6 g1 Y
<statement sequence2>;
8 Z. i. \. r/ U) }1 ^ end;% N4 ^9 `. \0 F0 y. R. V+ Z
(2) while <condition> loop
2 i5 f* h9 v0 B <statement sequence1>;5 |4 W# i" c+ e% a7 R, h/ N
end;% v+ u! e; M# ?5 X" ]. s
(3) repeat # B* v* S9 W( i
<statement sequence1>;
2 l: m- n7 ?: L3 j9 F5 j" y9 m until <condition>;1 s) n: I ~; l) d, f
(4) for <condition> to <condition> loop
0 F$ r' s A: B" m% J( R <statement sequence1>;, j" Q; F' u/ W8 W x% L: `
next;
* ^6 `" c! S: W8 `3中断语句
; @6 b* I- N! m5 Q waituntil <condition> prio <integer expression>;1 J6 o% V' H; e& x. \
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+ g+ o1 ?, v: j& z$ l以上为常用的函数！
4 W3 X1 L' P# ^; \0 G还有很多，如有需要我把资料发到你邮箱里
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