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发表于 2012-11-13 08:48:12
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1判断语句, F. l6 I6 e' S4 a7 L: T, [
if <condition> then
) K# m* [$ t' V ~; R, C2 v <statement sequence1>;8 m, ~2 ?9 w/ j$ ^( u
elseif <condition> then
! f& L/ ~/ z1 G" Z1 f" s! I$ A/ Q' J <statement sequence2>;; q! b, l" w4 f: o8 {
else
/ T$ r0 x5 ^+ B- ^( V7 } <statement sequence3>;: k6 u1 b$ ^" V
end;
0 c& E3 \8 Z) t6 P如果分支比较多，用：3 K5 z+ [, K# S# Z+ z7 U
inspect <expression>
7 B) W; C- P3 \ when <constant_list> then
, A) P1 B, K- U' f# a: M. Y7 W/ k, q <statement sequence1>;9 Z, n1 C8 b. F) o
when <constant_list> then
$ q- {% q7 d6 S% G% L6 E: C <statement sequence2>;
2 ]8 R& L8 t% Y ...
# B. @! \, k9 J( J4 r8 }+ O else
& c, e1 h. v; H/ i* Q' l R- N% Q <statement sequence3>;* a$ e+ ^! x) T2 f
end;
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2循环语句
& J* _+ {0 L4 T6 ^. I$ n (1) from <statement sequence1>
: E& q) [' `" e: H6 D9 j until <condition> loop/ z- T0 h( n$ ]2 ^ C2 i/ j
<statement sequence2>;$ b' i l/ [, O0 S
end;
/ N4 v1 c; ] L z (2) while <condition> loop, M9 R( b: L% _
<statement sequence1>;
, T4 J/ _ q" Y% L% K: u1 O2 B end;
4 _ V" J8 \: |6 n (3) repeat 0 x3 X" Z; H0 V/ {' E
<statement sequence1>;8 y4 Q# E c2 h+ r
until <condition>;
/ }( b3 i+ f1 o6 Q f5 V1 }" J, v (4) for <condition> to <condition> loop
) }# f! V. c1 i- Q* D$ t: Q- v6 E <statement sequence1>;
i7 `) F' a) y) F next;
0 {: Z- v3 N1 A9 [3中断语句
4 u7 |/ _2 o: w$ d waituntil <condition> prio <integer expression>;
, t1 c0 u& ~) m4 S
. _3 i. w* T2 _: j1 [( u* Q% w, ]9 \4 T* x
以上为常用的函数！4 U' ^* d8 O, ~& C
还有很多，如有需要我把资料发到你邮箱里
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