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发表于 2012-11-13 08:48:12
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1判断语句4 D7 d) M1 b3 S7 \& i$ p
if <condition> then
# J3 P, Z+ ~0 c& M7 ?) j <statement sequence1>;
x7 z5 P n& G8 K: h0 W elseif <condition> then
. @6 T) E0 J4 u4 W9 R$ _/ ` <statement sequence2>;# S+ v+ b' g! T8 c) J Q
else + D2 t; V3 w- [0 K1 o8 ?8 s
<statement sequence3>;; h3 S* H! I C$ }8 I
end;
3 H4 U7 `: [% q+ ^' [# |/ P如果分支比较多，用：
$ D5 q2 a7 t2 m+ y7 Q inspect <expression>* C M: x2 p' y, d/ b+ q. W
when <constant_list> then
6 Y, ^$ [+ a0 d" o9 k' E <statement sequence1>;9 ^! { C! j4 Y0 e
when <constant_list> then
/ C/ J% I/ D9 M) a9 @ <statement sequence2>;/ @, }0 ]7 v' c
...7 J, S* S. S& y8 }0 d& W) i1 V
else
* y" l! v Z9 y' q! C& [ <statement sequence3>;
l7 o4 m: K+ ]end;1 K* h$ P9 q/ L8 m) j
! Z5 x% N5 x7 Y+ J2循环语句
; M8 R% e$ `$ W' C ^ (1) from <statement sequence1>
* T5 U/ \1 n# F* x: X/ K until <condition> loop* R3 E4 y/ {- Q0 ^7 |2 i! u' W' b
<statement sequence2>;
$ D5 u) e3 s3 s0 l/ T! o end;
! V# `; [% L( A& c (2) while <condition> loop2 }. o$ e/ {1 e+ s R$ g9 |3 E
<statement sequence1>;& g' z# x) L# n$ b a+ m1 L
end;
: Q! T9 I' L F _/ t (3) repeat
- `: q1 ~% D2 ?, ^$ s" M; Q <statement sequence1>;
+ x! C% E1 R2 p' L T& x until <condition>;
9 B# [" O; M* d% K. E (4) for <condition> to <condition> loop
4 P% b6 l/ r5 n' B/ ~) |6 l <statement sequence1>;6 \. w8 N' e O: _
next;
' B* W- e s9 `+ w! Q |2 f; ]3中断语句
2 m( d1 H* X* i9 Y+ Z- I# D waituntil <condition> prio <integer expression>;
4 e9 q" A! T1 C1 `+ ]( \. I
' U' @4 F1 |0 J' I/ T# E; g& }. U) X. D8 L/ {+ v, I. {
以上为常用的函数！
- R1 o K" V& F: i还有很多，如有需要我把资料发到你邮箱里 2 d3 U" o1 [: r6 f4 h# R
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