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发表于 2012-11-13 08:48:12
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1判断语句* I0 L$ Z2 B0 w& ]1 M
if <condition> then7 c/ G( Y6 _; u) v, R
<statement sequence1>;
, C' F. F7 W D. Q! j2 | elseif <condition> then
$ U2 C1 I: W7 e1 c <statement sequence2>;/ ~ G0 u6 y1 g. C3 Z o
else 4 V9 s0 @% T2 C
<statement sequence3>;+ Y1 a5 u0 Z/ V" W3 l
end;' m# Q4 N! H: k R9 m- I
如果分支比较多，用：
" W3 }8 Q, v9 B8 w+ M1 t inspect <expression>
1 E* K1 w x' U4 o( D when <constant_list> then
# f/ r" H) R" Y- N* t8 A <statement sequence1>;
1 M6 |1 {1 ^) p- k when <constant_list> then
' R. v* [ D; P- ~; D) I: B8 K6 j* J <statement sequence2>;9 N0 N$ ]' v5 l$ q8 |" x
...- [3 F2 r) n5 n' v; E
else
+ P: C T" D6 }. X" `/ l+ A <statement sequence3>;
- v$ v- A$ u+ @5 Q% z# xend;
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# S5 M6 [9 f5 C" g0 L2循环语句/ m8 P+ l- A2 c
(1) from <statement sequence1>
6 s: P' Z* B( y: h; S( @4 A! Q until <condition> loop* |) X. p( Y+ O$ ^! Y0 l' U/ H
<statement sequence2>;. W x: @( R7 \# V* @
end;
9 ]8 H8 h* ]" f8 z (2) while <condition> loop
% q; }8 W/ U6 x7 I8 u& g) g <statement sequence1>;
: n' l( n k2 w$ T9 X6 G" `* a end;
1 D: q' S" H a( b" |9 L (3) repeat
6 y; \$ o# Y7 ?% X- q7 S& t$ o. y <statement sequence1>;
. }5 J- s, F7 j D9 s, J" ?8 [ until <condition>;
( N+ L- U+ s& U$ m- l! @$ E (4) for <condition> to <condition> loop
5 X5 V7 q4 F. p+ F- G) y+ {4 u <statement sequence1>;" e8 N, M8 M4 J# i. z: _5 ]" o
next;2 A. x2 C* R$ B5 ~ s) G: q+ S
3中断语句
' |3 m% I& g7 A$ C4 t# V5 q. o waituntil <condition> prio <integer expression>;
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& D! W$ f. m5 A! |7 S* q# n
_+ x4 k# m) m8 l0 {以上为常用的函数！6 f0 V5 `0 r% u) C# e
还有很多，如有需要我把资料发到你邮箱里
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