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发表于 2012-11-13 08:48:12
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1判断语句
2 @! f i0 j6 _+ P$ j if <condition> then w! u* a( Y) B. w$ E& _- G/ N
<statement sequence1>;
& C- G# P7 {* P: W2 Q; P5 t elseif <condition> then! r( B; e' D \
<statement sequence2>;
. w0 \7 ]0 a0 R% H/ F* R F* c, k: V else 7 }- s5 Y, K. f
<statement sequence3>;/ b, _7 t- X ~' ~
end;4 F. y# w! H' h; Z
如果分支比较多，用：
* ^, K3 W# F$ p: n0 p inspect <expression>
: Z- S1 a7 q0 r2 X' b1 p when <constant_list> then
! c* O6 `0 e2 e) u <statement sequence1>;* `+ A0 p0 N, m) k$ i2 R
when <constant_list> then& A R& `) l6 P- K) ]0 h
<statement sequence2>;# T: r' l0 [6 i7 w
...8 u) q& @" c/ b& z) u
else" R1 N7 W) x- o8 B) \: ^& [
<statement sequence3>;
% t2 g4 S5 T/ P4 ~end;/ Y+ I. y, A$ W5 D$ ^0 u
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2循环语句
3 k b! Y& b9 o" i+ s% l (1) from <statement sequence1>8 N; ^* X6 n+ q0 s2 ]! q3 N
until <condition> loop
2 o w8 d4 Z3 [+ u" G5 M5 D2 [ <statement sequence2>;6 a* Z! ?2 [& @) d* ]) ~
end;- r. m; p" S1 U8 Q1 U9 y/ o! `& \
(2) while <condition> loop6 O# ?* _' ]0 a \( ~% b' o
<statement sequence1>;
0 A9 q4 M' x+ H5 o: }: J5 Q0 q( U end;
! q/ z9 m, O9 Q5 x+ c' a: d (3) repeat
, }8 x. ~! O- U9 \1 l* k+ m8 L <statement sequence1>;
9 M9 s- q$ f* G: t until <condition>;8 h2 g, s4 ?# a) \, X
(4) for <condition> to <condition> loop( o6 b6 e+ Q/ o
<statement sequence1>;
$ v1 y2 d9 P( D" F( T; u next;
) {! [ G5 x$ H7 F# U1 ?9 j3中断语句
* x9 X0 F9 M- m9 u* {( v waituntil <condition> prio <integer expression>;" H4 C7 }* k, a; _
# ` R, s ^1 P) @( s
6 j# f. x) J( ~3 Z. u以上为常用的函数！$ L2 q8 ]- `' G" B1 N0 k, N
还有很多，如有需要我把资料发到你邮箱里 $ v7 ]9 ?- s2 U B
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