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发表于 2012-11-13 08:48:12
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1判断语句+ r% ? i8 e: b
if <condition> then
9 }8 ]( p/ T- ] <statement sequence1>;
& d( g0 J/ c% L8 y W elseif <condition> then
K2 i" e+ b) R* {+ ^3 I <statement sequence2>;
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<statement sequence3>;
" F/ L8 `6 t' t: a, q( k! I end;
2 g4 j, q3 N1 V+ M8 N) z如果分支比较多，用：
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when <constant_list> then
, n9 O0 K8 S! r$ @; o <statement sequence1>;
3 |9 i5 L+ H# f- ]4 @# n: I4 u4 g when <constant_list> then
0 f4 j1 b @- m1 l# u" [7 Z <statement sequence2>;
, r& Y7 a* @7 p' E ...
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<statement sequence3>;5 i6 a7 ]( e$ g! E& G0 Q
end;
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2循环语句
& m$ ]2 S$ J1 S* `7 S (1) from <statement sequence1>) k6 _0 p8 z9 Q& ^7 S
until <condition> loop) ?- X5 w2 t: X" ~' J* v# p
<statement sequence2>;
8 Z- u* v* t2 N0 r end;
4 U6 t4 [: I b0 m9 v; Q, H (2) while <condition> loop0 {4 ~4 \. D$ | X- ?4 ~# u
<statement sequence1>;& Y+ j" k! ]3 ~8 E6 Q
end;* L6 I# b9 ~$ P$ n8 l. v/ j
(3) repeat " Z- t& w2 M/ p/ o% Q9 n
<statement sequence1>;9 T; C. c! o' W' H" ]2 F X- ]0 n6 @
until <condition>;8 ^# m* h$ D3 w4 t. L
(4) for <condition> to <condition> loop$ j! H5 K) i$ n5 B
<statement sequence1>;, l0 W2 L4 S* G0 J4 K, Q3 Q! u
next;
9 o+ d( b$ s, a# y0 M" H* [6 X3中断语句
1 E2 }7 T5 T* M- o waituntil <condition> prio <integer expression>;8 j/ {' c7 }3 o$ G3 K0 S1 |
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以上为常用的函数！9 y) U v8 o5 O, \" e) y
还有很多，如有需要我把资料发到你邮箱里
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