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发表于 2012-11-13 08:48:12
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1判断语句# U: x$ r/ t" _3 e
if <condition> then' i3 i7 t$ t l1 z$ ]. Y
<statement sequence1>;; R3 m1 {2 U7 S1 W" d7 }
elseif <condition> then2 o3 n, l0 Z+ j
<statement sequence2>;8 U( j: m' }- W
else , \3 O' Z$ C( M3 N; [: O& B
<statement sequence3>;
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如果分支比较多，用：
. k/ I3 n: { \# W8 t% B inspect <expression>
9 R$ |7 ]% w" K: Q when <constant_list> then
! Q4 u" `1 W; i) { <statement sequence1>;( w+ L* E; z. z8 _* R
when <constant_list> then
/ \) G$ P) }7 i" ]# U <statement sequence2>;
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else4 u5 e' F n3 |8 [8 t1 a8 F* O; e
<statement sequence3>;, y% T( `6 @4 Y" l7 |1 U
end;
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2循环语句
$ D/ D; M! ?3 R$ n9 \8 Z (1) from <statement sequence1>
9 x: S4 F/ r! | K7 P3 m0 I- x, b# T, } until <condition> loop V* I8 ~7 T: o l1 P
<statement sequence2>;! l7 T: q% b+ ^' m! x0 U
end;
+ B; A% U% X2 w/ b2 I$ l (2) while <condition> loop
i6 `0 J9 U! j) z) U <statement sequence1>; F$ q' E; M& g5 O3 `5 p
end; a T/ O6 [3 x' d: ]+ a8 ]. {
(3) repeat
/ |$ p6 \! L0 c/ d <statement sequence1>;
+ V: d# Q& K4 V, w# `9 z% `& K3 f$ a until <condition>;
1 W, ?7 |+ e4 m! C, ~5 o (4) for <condition> to <condition> loop
9 e1 `& c. N* w& S2 n0 R. @$ W <statement sequence1>;5 l6 P% X% ]% J1 q
next;
: p0 e8 {; z0 _* \+ U3中断语句3 n7 d& y( T# M
waituntil <condition> prio <integer expression>;' L0 L0 [5 g4 e2 I( `
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" L; o4 d: e& w" C- G以上为常用的函数！) d1 u w5 a6 V; X# v, Y# o/ r8 Z
还有很多，如有需要我把资料发到你邮箱里
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