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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
x W6 G( L( |( V if <condition> then5 N5 S$ |# x; l3 s% q! {' F0 \
<statement sequence1>;, n! K' d: t- l, i n+ { r
elseif <condition> then1 v( H, k! \7 [9 K' d+ r; \6 z
<statement sequence2>;# h, W- p7 W% h0 \* I! q
else / o' S. E9 ^2 ~$ f1 y" L+ _
<statement sequence3>;$ e/ {# P3 S! W8 M- h; ^& g
end;4 w+ \) U1 G$ q6 S7 S. X; D1 v1 U
如果分支比较多，用：
. K, e# g1 N& w1 W1 S6 e. ]' H9 D' H inspect <expression>
9 b U* g9 a j$ E when <constant_list> then; e4 V! a1 B% M* \2 `
<statement sequence1>;) w& L4 V: ]" _" t \
when <constant_list> then
* s7 |9 S/ ^4 N, D+ a6 m$ x% c <statement sequence2>;
) |% x1 i/ U* \ ...
* l) [3 ^( Y: I- S else' L8 @( ~0 R' q8 i
<statement sequence3>;' ^! L, _: \2 m' X
end;& q4 d t* _% f* v2 I$ @
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2循环语句
) i( p4 \; ~1 M3 S+ F& L (1) from <statement sequence1>4 A+ M: R E; {7 K4 @ \* v
until <condition> loop
1 ~ `$ c/ Y5 v; I <statement sequence2>;
8 F& t$ \* d' A s: n4 ~8 m end;
5 r) J% d+ R. @+ @' c) w, F (2) while <condition> loop
* L5 b- w) T7 [ <statement sequence1>;% O" c! }' _. x
end;' |* ^; L9 K }4 C. I: y3 I
(3) repeat 8 C! v6 O, O) F& A0 A
<statement sequence1>;
( e! y+ o# W* c& G- M+ f until <condition>;
) H& g% [) g# f' x8 H (4) for <condition> to <condition> loop
" L0 r; W8 j4 s7 N1 r! k <statement sequence1>;
* x& C, n$ ^3 N& E% P) o/ I } next;3 ^) Y' X$ E; o% @1 u6 {0 k
3中断语句
. f) y0 H6 z+ u5 L) O5 q( o# \, R) Y waituntil <condition> prio <integer expression>;, U2 A0 ]7 [: p
* \" i: B& C) t: O% r/ Y7 f+ f9 {% `0 t; h: C
以上为常用的函数！5 F! D# ?2 T1 K, ~3 ^# r' j& i
还有很多，如有需要我把资料发到你邮箱里 U8 A1 Q/ t z- g! S
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