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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
) p% E5 w1 }/ h: p9 ?3 v if <condition> then1 p; u* `# C1 o9 L! d
<statement sequence1>;
6 l5 B; u$ g. h, ^3 R, ~2 {' j* v elseif <condition> then" _ M& t6 e. a; a+ \
<statement sequence2>;6 V g0 ^7 M. z) |- w( f# P
else , |) O3 \( t0 L, I1 r
<statement sequence3>;) ]; K- m i2 _; M6 A: A2 ~
end;
( F7 R. B2 e2 @$ g& u* l5 Q. U9 B如果分支比较多，用：
: `5 c9 L& ^1 j! q0 R inspect <expression>. g# v! M5 C3 D
when <constant_list> then7 z4 I# r& |" f& k
<statement sequence1>;
e/ ~' Z' [6 T+ u when <constant_list> then5 `7 |) `& i1 R3 c( q
<statement sequence2>;
+ q" X6 f, G7 z/ ?! Y% {0 V* d; @1 D ...
! ^$ T. ~. P5 B; h+ x else" q" R& F0 P- @, `% D% Y& g
<statement sequence3>;9 x8 F( Z, n- N5 z9 J- j$ {! L
end;
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2循环语句
1 o8 S1 V( w M$ } (1) from <statement sequence1>
' i4 ^6 T, |: ~* d7 \ y until <condition> loop
7 m8 F& c- ?, a1 ^3 o; q- h/ ]0 u <statement sequence2>;+ M2 @: U w5 X( f5 a2 Q: j
end;, P3 Y" [' y( e# B# u
(2) while <condition> loop
5 `# D5 F* F2 d9 x2 }4 w6 s) K <statement sequence1>;
/ G1 Q. ]+ P$ O- b- a2 G5 y end;
/ S1 ^7 C$ Y/ [/ D6 o (3) repeat
6 s8 B( ^, M% A+ [3 u+ w! E! s <statement sequence1>;7 g. ?" o2 B; w3 E( d, `% w
until <condition>;
$ A( d. u7 T7 ]/ N% X6 k (4) for <condition> to <condition> loop$ U) O/ c# k* O8 J3 W; A1 Z: ~- k8 Y
<statement sequence1>;
" @; m2 d3 P" t% m. ? next;+ m, [) U" C* W
3中断语句
& S5 R2 M* `/ G" d5 g# T9 D- ] waituntil <condition> prio <integer expression>;6 K- C2 T, s$ |# M& r$ [8 E
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以上为常用的函数！9 U' p, x8 E( O( ^* Q( q+ z: O% h2 a
还有很多，如有需要我把资料发到你邮箱里 4 o2 L5 f; C, R0 k& w
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