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发表于 2012-11-13 08:48:12
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1判断语句% E3 W* W0 v( I& E1 P2 P5 `
if <condition> then
2 B5 d# R" ~+ Y- T& q2 w9 A <statement sequence1>;( b4 D! {6 S1 p/ Z, o
elseif <condition> then; {& k! s O4 U( C: e* o, F
<statement sequence2>;
. V. W' c* [9 H7 P/ w else
7 o3 K9 F9 ?; C& v- T5 l <statement sequence3>;9 K) Z+ Q) | W& Y& O
end;: p4 {, T7 z& d4 l$ q
如果分支比较多，用：
) K. R0 l9 o9 i6 i1 e inspect <expression>
y0 d8 [0 @4 U4 z) W when <constant_list> then
* x1 Z* `2 D! x/ n- @& X <statement sequence1>;, G, I4 R9 E9 V3 Z: F% E$ D7 S
when <constant_list> then- k, b9 \ ^! M: h9 l# f* H9 t, H
<statement sequence2>;( ~& S* |4 r: P% h* Y8 K; f. E( l
...8 z' |5 u5 g# F- P7 y5 o. B
else, t: F" C8 y1 F) D
<statement sequence3>; M7 a* Q7 r2 S. w% D* G7 b
end;
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2循环语句
9 R: P; R$ n# p (1) from <statement sequence1>; ~7 T% V* Y2 h
until <condition> loop
( n- @% ?& O: j5 }, T <statement sequence2>;
4 y. M2 l: Q6 H# O' f/ e end;
+ K0 n/ t1 i7 c' H (2) while <condition> loop
) |$ ^ {; m3 `1 e) R0 L <statement sequence1>;
$ W& q% e1 d0 N* ~0 [9 ~ end;7 L/ `4 X( R. P: r" w8 O
(3) repeat $ m5 S0 w N: k/ l4 t4 Z! O
<statement sequence1>;$ f' [3 O# }8 }( z$ [. N5 j
until <condition>;( \ E3 g3 i6 W+ {3 G3 A! q
(4) for <condition> to <condition> loop
/ y q: e: d, u7 P& _$ p <statement sequence1>;. U: v; G* `; @- u
next;
2 [3 P) W1 B2 {+ w* U3中断语句 ]# L( Z- \% x5 }& M! v) ^
waituntil <condition> prio <integer expression>;
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1 a; k; [$ f2 ~" {7 _+ b+ X4 ^
以上为常用的函数！
( V( o6 D4 v8 \; W. [; i还有很多，如有需要我把资料发到你邮箱里
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