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发表于 2012-11-13 08:48:12
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1判断语句9 S/ s% M, ^6 W! ] M8 ]: L
if <condition> then
4 N5 Z3 s( ~, c6 S" g+ I <statement sequence1>;# _: F% S* D! o0 q) T, q7 g1 L6 U- o: V
elseif <condition> then
, E/ ~; N+ K5 K+ {2 }' s3 n- E/ | <statement sequence2>;- i7 f" j& r, k2 @( }
else
- V/ J F: C( u) U# [8 o, T2 s1 @ <statement sequence3>;6 s' f: Y/ B: ?' i/ @% w
end;
. e5 H& s& f4 z4 L0 z5 p; w. q如果分支比较多，用：4 @- C( r4 d2 @5 ~0 S' J! X
inspect <expression>/ ~1 ~! @. Y [/ F) ?. G8 \; P
when <constant_list> then, B3 }3 l8 t; U% B3 d2 J. C+ |
<statement sequence1>;# [; `2 J- Q1 W# {) r+ ?5 O
when <constant_list> then
6 y4 S$ G: ]' f <statement sequence2>;# g. i* h, x! a& p
...
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<statement sequence3>;; O, a1 h7 N4 H! u; ?4 k
end;
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8 x- j5 Y/ x- b4 w3 P7 i: e2循环语句
+ @3 `1 c' i2 @5 y- F (1) from <statement sequence1>2 g {, K+ Z! [
until <condition> loop
6 u$ `6 S7 Y, p% @( |! A <statement sequence2>;
4 P/ { U7 z* t7 j/ `, c1 S2 x end;
" D8 s, c8 {9 z2 x/ n9 @9 S f5 s (2) while <condition> loop
6 o# y, @$ _3 F% F. a <statement sequence1>;
1 P2 q5 R5 P7 A end;8 I; Y; n2 T/ E- G6 f4 p9 J- }8 D. Y
(3) repeat
4 }6 v( Q E, f4 q' A <statement sequence1>;" f: ]6 ^' f( n: r8 J) P0 c
until <condition>;
9 l2 ]) r6 j2 d2 m- }" j( {! n (4) for <condition> to <condition> loop6 P* @. v: H8 d
<statement sequence1>;
* A: m: j, A* \, M1 Z: _! i3 Q- X next;
! o+ Z6 Q# a% [4 \# v3中断语句
. n0 N( R; j" v4 U2 Z% E waituntil <condition> prio <integer expression>;
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以上为常用的函数！. D- G. T4 [5 q, Z5 s; t
还有很多，如有需要我把资料发到你邮箱里
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