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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
% O2 W5 O% A( p4 x L: ^( u if <condition> then: F: t& { E. E( o* v* o
<statement sequence1>;
- s/ v L- i0 s, R3 s elseif <condition> then; _+ L9 V+ l" W4 ^8 R
<statement sequence2>;) c5 @2 {: B9 m
else
6 ^' |) V( l2 b+ }7 A% G/ d2 t <statement sequence3>;
3 ]1 j& R7 d. w v" P/ n- A, ?' w end;' _, b' U, D' P x
如果分支比较多，用：
+ Q( ?$ C* r$ M: A4 _2 o- s4 T5 _ inspect <expression>
1 f# O9 e2 W3 r, n when <constant_list> then0 S* A! {5 Z) J2 Z- r
<statement sequence1>;( {( v# a3 E; R8 Q
when <constant_list> then
3 P$ m- b! B* q6 X& u* ~3 t. N <statement sequence2>;& M, R5 O' P8 L n9 x q. o
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else* l0 ?7 d. L+ |' |# k* I
<statement sequence3>;
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2循环语句
6 a+ x# Q0 F" }3 v (1) from <statement sequence1>4 x$ Z3 ], Q( a6 {: B# s
until <condition> loop& S1 w( I" R! T4 P; a" _2 j
<statement sequence2>;
+ D8 ~& Q2 n9 { end;
; {( F; n+ f) P' }* a. ]( W7 j (2) while <condition> loop
6 E8 k4 l/ D) r! s6 {. W! Y <statement sequence1>;
3 } Y' l$ p7 r6 D" q end;
- X& F. M! `3 m% F: |3 e: w (3) repeat " k) c! M" J0 J) U- W. `
<statement sequence1>;# o7 d* r1 ~7 a: j5 Q. [3 J7 G
until <condition>;) Y- j# V! A4 E( l/ x& \
(4) for <condition> to <condition> loop( \7 z7 `- \3 v, z2 n
<statement sequence1>;! A% D+ A6 T& n Q0 R+ z
next;- m" J; r) k1 j6 E9 a2 @
3中断语句
2 a" Z- i7 ?2 h' V% f waituntil <condition> prio <integer expression>;
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' [! W+ |* E' }" ~1 H: [以上为常用的函数！
7 Z' V4 A, c: I/ q ~9 x, `5 @ }5 x还有很多，如有需要我把资料发到你邮箱里 - O* @" @" g2 a% }
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