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发表于 2012-11-13 08:48:12
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1判断语句' q# X6 t \2 w3 P8 l, j7 L& k7 ^% F8 h
if <condition> then/ E, F" R) N3 v/ L2 f
<statement sequence1>;; g' Z; ~8 v& D+ S* _ I; E
elseif <condition> then- `) l9 t0 D& A0 {. L& \
<statement sequence2>;6 Q. v; r$ g, Z7 p- T$ }5 M
else ) k7 L1 ^/ h' |1 C" G3 i8 E9 M5 i
<statement sequence3>;: [' Y: C& Q( G! [
end;
! a# J, z( d3 G) z9 n9 M如果分支比较多，用：
& p; E# J3 v& \ inspect <expression>- L4 \/ V& J6 J2 i0 z% P2 C
when <constant_list> then
5 @5 c2 d8 D `/ O7 U9 K: N7 A! p <statement sequence1>;
6 I( V, s2 u9 {* U* b5 r when <constant_list> then+ b9 l/ | c- z) U' d# ]" s
<statement sequence2>;! ~' k) i& Y' n. O5 E5 `$ l* D
...) n5 T# e' V+ S: Z O
else
1 F; I r9 _1 X7 p5 }4 H <statement sequence3>;
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* z) y: x" q, y8 x, C3 ~2循环语句
+ Q+ f i7 E/ F9 e7 W2 u (1) from <statement sequence1>" a% a! c6 l/ l7 F1 Q
until <condition> loop
" y, b1 S/ n5 b/ n <statement sequence2>;
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(2) while <condition> loop
% T! p) F2 q. s) b D& n0 V/ H <statement sequence1>;5 q+ l" m$ j6 P& h w% t$ d
end;+ z; p* h. F: S/ F8 t7 j0 r7 n
(3) repeat
) j, f/ [9 u8 S9 p8 p) C <statement sequence1>;
9 Y. C" `4 K, a: H8 Q2 n; V until <condition>;) ^' S8 z6 S* S: K
(4) for <condition> to <condition> loop
7 t4 _% l! h: B, @) t <statement sequence1>;: b/ x, _* Z$ ~1 A
next;( g+ j3 U& `1 A8 P
3中断语句
$ a/ X: Y0 ^- Y$ F waituntil <condition> prio <integer expression>;
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0 {$ h- w N7 x7 }* p6 ~; s9 r. S以上为常用的函数！
0 D, I/ i) V; k6 {3 [8 n还有很多，如有需要我把资料发到你邮箱里
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