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发表于 2012-11-13 08:48:12
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1判断语句3 `. E. M2 x% v
if <condition> then
% D0 f* t) d) X <statement sequence1>;
( j) x* O2 z4 k1 t6 @! N. R elseif <condition> then
7 \; n& \; N! k' L6 ?# Z. y1 e <statement sequence2>;
5 F) f2 T7 U) Q% B$ A f. f9 H5 G else
/ U) {0 q4 \& [% t+ _+ y0 K <statement sequence3>;
. b: q8 `2 `! ]) p% V end;
4 T" P4 Y3 m! J& f }. D如果分支比较多，用：+ K3 U- k, h. T. L/ O Z( E: i; j
inspect <expression>" I3 Y t, Q) m
when <constant_list> then; d' c* l* u" i' V* f5 h1 S
<statement sequence1>;% p+ Q3 D6 d9 Q: \2 e2 d
when <constant_list> then# n% l" r4 {0 F( D+ T
<statement sequence2>;
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else
$ H, J% j& d! U9 r1 h" {6 o <statement sequence3>;
* `' \/ Q/ x Y0 I- X. u: cend;5 K& P3 A, m5 B0 s
* U4 s) u% G' g$ L! i2循环语句
3 i7 Y& B2 ?* d8 X5 B (1) from <statement sequence1>
& z" f5 W u' ~. ~! Y" d, S" n! O until <condition> loop
( }( s, }6 z8 U# k% f& n- N/ y- s# v <statement sequence2>;' I* \2 ]5 d5 L+ `
end;
. L6 J- j/ ]0 S+ S! y9 J! k' w (2) while <condition> loop
+ M! l/ l1 i* l( k! S# B' M <statement sequence1>;: t' P4 |0 H0 v8 _* U
end;
# X% C) d% E' k$ z7 l# v (3) repeat ) w; J3 C+ P" a P' G. t$ d
<statement sequence1>;5 @7 O- t: z: t5 B7 Q
until <condition>;
$ D; u4 B/ d4 F" L (4) for <condition> to <condition> loop+ e" }: h& q2 ^5 e7 n
<statement sequence1>;; ~( B. c' g' {1 @& C# P
next;
. C( B: b' R/ [# Q7 y* U3中断语句. X2 q' E, e( H" l
waituntil <condition> prio <integer expression>;+ ^; W; m5 A0 I
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以上为常用的函数！
; X3 ^4 T# L4 m还有很多，如有需要我把资料发到你邮箱里 - ^$ ^, L/ H% W& @. q, |
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