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发表于 2012-11-13 08:48:12
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1判断语句
, b. s5 V1 G, L/ z: j if <condition> then+ K! X- ?. T0 \2 \8 O& }, m
<statement sequence1>;& Z* i* }: ]! G6 `
elseif <condition> then3 ?2 L3 Y; m9 h8 t; T9 @
<statement sequence2>;3 k1 F) a9 p* s8 H
else 3 T E |8 \- M3 p7 ?
<statement sequence3>;
4 Y' u4 p: o! h1 K0 H end;
* |- ~! p( B% Z0 t7 y5 n, i# U如果分支比较多，用：
s5 T0 F. ~% n' i/ w' B% b9 ] inspect <expression>
- o6 m1 C' e, U% j. m m+ ^ when <constant_list> then% @% `1 \) m, v1 K5 }# C
<statement sequence1>;
7 Q5 {6 o7 _& m when <constant_list> then! s% Y! K. t7 f; }
<statement sequence2>;
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else4 [3 S, E5 n( l W
<statement sequence3>;) U+ p% U6 K# f- J
end;+ f" d+ X" x. d, j2 |
4 }( u4 T% l7 ^0 @9 f5 ^% E2循环语句
0 R, G& x$ w9 X+ j3 w# s# S; O (1) from <statement sequence1>
& E `; W6 q S1 f3 J until <condition> loop
/ D( M) x0 t& z$ \# G <statement sequence2>;
. J% |8 O, \; j$ R; C end;0 @1 E# s( J/ t+ \
(2) while <condition> loop
: g( n6 N4 C- Y. D8 r) @ <statement sequence1>;
8 N, C8 S. z: Y7 l6 S# U$ T end; s% ?& B+ y/ p( L
(3) repeat
8 j7 x* r# V9 E0 j, ]4 E <statement sequence1>;: {% V6 r# f$ N1 l
until <condition>; F0 z I& K1 Y: d$ Z3 a$ v
(4) for <condition> to <condition> loop! u9 B' o u/ G$ x) f% m
<statement sequence1>;8 ~ t, ^% e! B1 S
next;
# Z2 d% m- E' j1 k3中断语句7 Z5 P8 H7 [, F$ Q1 v
waituntil <condition> prio <integer expression>;
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! Q- V+ @, Z% e' C( V3 ~% V/ i
3 k: X* L+ [( x$ G1 W4 P& \以上为常用的函数！
$ a4 Q( d8 k U; e4 P+ }还有很多，如有需要我把资料发到你邮箱里
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