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发表于 2012-11-13 08:48:12
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1判断语句
: E i2 B' \% G; {8 o3 I if <condition> then1 n- A; @( Y9 y2 M. O
<statement sequence1>;$ t4 J0 K) I$ ?. K3 q2 s! x% t- Z
elseif <condition> then- o( Y s2 |4 i/ I7 O" r" Y8 W6 f
<statement sequence2>;9 Y+ u1 Q4 }6 ~) B) x
else
( z# q4 i2 X5 ]' T <statement sequence3>;' e8 C; k q4 x
end;5 Y8 M' a7 p0 w1 F4 F5 t
如果分支比较多，用：, r6 I+ w% f6 ?1 d7 @# V; k" x3 B" |
inspect <expression>9 E% t9 l" N7 L4 g, x
when <constant_list> then
0 G7 i8 r, v/ J$ I5 V: D- `3 t <statement sequence1>;& u1 n" v1 u- t
when <constant_list> then" |2 e1 m$ u2 e4 D7 R; S
<statement sequence2>;
$ V- {+ l, \7 D1 P ...
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<statement sequence3>;
' F+ [' G" u. M1 e% v& ]* [* t; qend;
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2循环语句2 d& N0 L0 g h7 h: l+ C# l
(1) from <statement sequence1>9 W X# x2 g9 K2 P
until <condition> loop) t1 \. m: Y* \
<statement sequence2>;2 T, E! R L5 A$ f! R f
end;1 _" X) h# i+ d# j8 f. E+ w
(2) while <condition> loop, W; l3 V0 D. _
<statement sequence1>;* H. c1 _* {9 o7 U/ k
end;
4 `* c- ~- l1 U8 H8 ^ (3) repeat * Z/ j' @ \: l' A* }
<statement sequence1>;
2 x! d: s6 K( j until <condition>;/ T2 b8 J2 {' ~0 l- _) L6 A: ^
(4) for <condition> to <condition> loop" z$ X2 S+ e* Q4 r: l
<statement sequence1>;
% B* L, S, B$ H5 F9 |# L) v' ] next;
/ l! _$ y, m$ d- [9 m$ n# y2 K; I3中断语句8 ~0 t' s" t* Q5 [: p) e" \& b
waituntil <condition> prio <integer expression>;
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- O0 `! U; p5 L6 f9 A* u" ?; L以上为常用的函数！! `! N: l6 p% l/ v0 |; Z. }
还有很多，如有需要我把资料发到你邮箱里 . J, ~+ M. R2 p% k2 E
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