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发表于 2012-11-13 08:48:12
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1判断语句! |+ h$ ^, y! P* T3 A
if <condition> then
( k* t3 H( ^5 u9 \+ ^3 k$ e <statement sequence1>;
7 z( ?2 w8 o0 m& b elseif <condition> then' x7 L7 l! V6 K
<statement sequence2>;# _3 v8 y2 ?: q2 D9 u7 l/ V+ D
else
! Z7 w0 r/ ^& r8 s. v' z l& q+ H <statement sequence3>;1 P6 \, [7 ^1 w. o8 m
end;5 a0 q' A# g" y
如果分支比较多，用：$ Z/ T0 t: u! w+ r/ b, J; j/ b
inspect <expression>
& v, O$ l" _! y4 G0 @4 ` when <constant_list> then; R5 G6 e: L7 H8 F. g/ t0 p, \
<statement sequence1>;
2 ]$ {; Q; `& N' T& A when <constant_list> then
8 A1 P% n4 K- f6 h <statement sequence2>;( |! x# p9 k) u8 h3 G3 `
...! `* h& e' W7 I; S: R
else
0 p9 p2 p7 I3 j$ a+ U( e <statement sequence3>;* d; f; P$ w9 H) {: h
end;9 s1 h* U+ n5 J& v" M3 S
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2循环语句& b6 |6 q, d8 C0 c( D" ^
(1) from <statement sequence1>
. u6 p5 J; A/ o) m0 x until <condition> loop
3 j0 i/ ]- x! _7 Z6 R: p <statement sequence2>;
& B$ v$ f1 c6 o$ l end;/ w* k- w) H) D3 }" z
(2) while <condition> loop
/ E: s; ?3 G0 W% S% M, U <statement sequence1>;
( I* X& ?8 c6 o7 y" G end;& I, O3 F6 d" s, w: |" P3 I5 C& L
(3) repeat + K" {* W4 P* t$ x9 F' K: c
<statement sequence1>;( I- y/ F, q/ q4 o( Y9 ]
until <condition>;
' h0 `# w/ h. { (4) for <condition> to <condition> loop3 ~( C! W7 g+ T7 a! }2 i' |
<statement sequence1>;
) o( B) n0 L- e; H' _ next;
8 H* U4 [/ ^# I; Z" z3中断语句( n" ]/ O O. c% L- {
waituntil <condition> prio <integer expression>;
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以上为常用的函数！0 e* m8 D3 U+ a+ o- h
还有很多，如有需要我把资料发到你邮箱里 # Z/ H9 W- }) O( |5 B# e
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