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发表于 2012-11-13 08:48:12
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1判断语句0 j: `: q- S8 T9 y
if <condition> then% l: d; s9 a3 u3 A# x( [1 O
<statement sequence1>;
: z+ ]+ \' u, Y8 C9 _0 l: B* z elseif <condition> then
' W) |* G6 b) y; r- g3 h <statement sequence2>;
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<statement sequence3>;
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如果分支比较多，用：" t. P4 O4 m7 |* ?* p. ^0 M
inspect <expression>+ D; j/ Q% Q) D
when <constant_list> then1 y( u& g% Q2 E2 U+ w: r) G4 B, }
<statement sequence1>;4 a; i& j$ L/ K0 M; j$ u! }" E) N
when <constant_list> then6 @; `: `$ W0 ^; j
<statement sequence2>;/ r2 ^0 J! e J
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else
n% [2 M8 [$ k, K X" @ <statement sequence3>;, L, E3 A5 O9 D3 n5 M
end;. i* U. W$ J8 V7 ]
8 Z+ ^) L+ L `; @6 t& v2循环语句' C( E" ]' ]9 _; K# A! u* c
(1) from <statement sequence1>% Y- z' \1 ? \5 H8 |
until <condition> loop& b0 ` o7 a3 N2 P! K' t
<statement sequence2>;4 J, ]" |& M, g \. r6 } C: P
end;
8 M' t8 J6 x! R; a( F/ }! \ n4 s (2) while <condition> loop, b2 L$ i8 B$ a' D4 ~
<statement sequence1>;$ Q; Z6 s0 [4 J9 T5 X
end;$ V% I: O/ W8 g0 I! \# a& e
(3) repeat 2 n# v$ C- ^# L2 L0 C7 X
<statement sequence1>;- A) o) f4 o, n) M
until <condition>;% ~+ x$ M! x1 e Z- l
(4) for <condition> to <condition> loop3 N$ k* Y, n; e+ h5 n" @
<statement sequence1>;
/ W- h% N) G6 i, K next;/ T$ f; y5 U: q( X1 v6 k) z
3中断语句 i) V2 i' ^) ~# C4 A2 B
waituntil <condition> prio <integer expression>;: P7 i* I g' S1 a; X# V8 h3 f
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以上为常用的函数！
7 ` X0 B! Y# y% c. `) z还有很多，如有需要我把资料发到你邮箱里
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