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发表于 2012-11-13 08:48:12
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1判断语句
; Y `" C( h7 o& ^# W; E: a7 ? if <condition> then
! h' q; E# X) Z: o' S <statement sequence1>;& }0 m& r+ }8 a& G* ]5 u, w: [6 R
elseif <condition> then( B& L( C6 u u
<statement sequence2>;
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<statement sequence3>;: U" z! u8 m* Q
end;
: i: ~$ _/ Z( A$ j如果分支比较多，用：
: c; ^( Q) c5 ]: w inspect <expression>( e; z+ _3 o9 O- l; S5 c
when <constant_list> then) y- x v3 S1 z' O) M
<statement sequence1>;; g) V B _- B; ~9 X% t- S
when <constant_list> then+ n& m( {# |8 i: \3 ?$ K, @
<statement sequence2>;- G& `, i7 b) F. G0 p
...
- t. x$ u* `3 s6 o8 N else C" `/ W' d/ M+ C0 ^, i6 }( C" u
<statement sequence3>;
6 S# @3 r* l: z" g$ m9 z" jend;
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3 b. w! v! X5 P) B+ A- g2循环语句
R1 Z5 ?1 B0 N, Z% [4 J6 u7 J (1) from <statement sequence1>! C. A4 C7 u0 z8 x. I: l7 i; i
until <condition> loop
1 F; G5 A' U8 C+ n9 a, T <statement sequence2>;
9 P3 G! X5 J) i end;+ B$ o8 X# ?( d& _' v
(2) while <condition> loop3 d9 l* D( o/ F+ I8 ~3 T$ |- I
<statement sequence1>;
/ G% T$ M8 q$ u8 \& C; Z% x c end;; s$ u- E2 o9 T
(3) repeat + O- X& W0 ~2 s' j) {) i* T
<statement sequence1>;
' ^5 s4 `. o; u8 J' E! V until <condition>;& t% V' c/ c3 q# z f4 R9 M8 E
(4) for <condition> to <condition> loop
8 b6 q' R- l i! p <statement sequence1>;
# J! r' U7 V) x" k! P% p+ n' n next;
7 P' A1 |3 E, i8 P) C. X3中断语句
3 s. a7 Z1 i$ Y" w: g! H; d( ~- x waituntil <condition> prio <integer expression>;/ W4 U- V! H" ?* i8 O+ c
+ z. q: w: q' R! L; d" C
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以上为常用的函数！
4 E1 Z& O0 c4 n8 `还有很多，如有需要我把资料发到你邮箱里 + T9 u5 c. P, x
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