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发表于 2012-11-13 08:48:12
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1判断语句
/ N4 V# \- Z$ J) [3 W4 m& i if <condition> then
1 t) r+ o' O0 [3 [) C- V0 Y% x <statement sequence1>;' t2 G" m7 H4 O6 A/ l
elseif <condition> then
7 Y( D, F1 J/ t& W <statement sequence2>;. F7 K0 C/ X7 ~/ E5 ?* k1 v1 H( i
else ' B/ p% m$ C2 W
<statement sequence3>;2 R8 i& M1 Q0 a, ]
end;
* t2 Z1 S* Q p3 N6 g1 o) O% G( F如果分支比较多，用：+ ]# `# j5 ^5 d3 t4 A V7 R, T
inspect <expression>
; {9 P3 A' n; Q& @8 _% ^/ e when <constant_list> then0 B+ Z/ _( S& R1 I
<statement sequence1>;, W# N2 B4 j3 t; x4 u
when <constant_list> then
E9 J+ P' x) z' F2 ?( X8 W5 I) A <statement sequence2>;* [! z: @# P! q- I+ X9 T
...! k6 Y6 S6 c2 h9 G* M- z- P) |: k% l
else4 a; v. ~9 k# q3 @1 m
<statement sequence3>;
3 g7 _1 U! D2 ?3 c9 X6 xend;
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5 v4 D+ {# p, f1 [0 @) D$ C2循环语句
j# [3 v3 D9 D: A6 z' P (1) from <statement sequence1>
8 F+ }/ O3 u7 I4 o, d9 p6 d; | until <condition> loop$ j" @) f h5 F! P, H4 \* s
<statement sequence2>;
; D7 _1 O$ R; L" L9 _( `) m m end;
9 Q# `& Q: I; M$ o6 V) M (2) while <condition> loop
6 E' g$ L# y$ j' u9 s5 _. H; | <statement sequence1>;
4 ]) X+ J z% `% ~1 F7 s4 G0 K end;
& Y) k4 w( i8 i) ? (3) repeat
U* ?" `) l& p% d5 H+ X <statement sequence1>;
% z4 E4 `) m+ d# E9 P3 ]. X until <condition>;0 A m _% V+ H: R- V9 \5 I
(4) for <condition> to <condition> loop4 n# \$ B( S5 e7 N# m. A+ w
<statement sequence1>;
7 q$ ~ m2 s5 f# ^ next;" T! A' u2 E5 Q0 q9 b+ z
3中断语句6 N; N5 f; w: C$ U
waituntil <condition> prio <integer expression>;( N- i5 O. l" Q$ _; i
3 G* P4 {" ?0 }$ u' y3 s( H$ z1 J
/ V2 P' Z. c4 j/ K
以上为常用的函数！
+ S+ P5 h5 f+ i3 H, K$ }' W还有很多，如有需要我把资料发到你邮箱里 " k# {7 b! W" o: y
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