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发表于 2012-11-13 08:48:12
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显示全部楼层
1判断语句
8 t& G. D Y2 {, B2 y if <condition> then
7 X3 }$ z# Q: M- F) ~: _0 v/ q <statement sequence1>; N; Z1 c8 _ L
elseif <condition> then
3 _* v- n, \1 F) D9 r+ g <statement sequence2>;- t. [3 @3 z' |
else $ ~/ U: v( _ u0 W# T- Q$ h
<statement sequence3>;4 S2 J/ K" }- y1 i1 Y
end;
& H" a6 ^" L' J如果分支比较多，用：1 a* M1 x0 Z- b6 ^' |
inspect <expression>3 @) L9 t8 i" U H
when <constant_list> then' `$ D; w: a* l- w
<statement sequence1>;( y; N; R8 I2 }3 k! J2 {) @. R9 Z
when <constant_list> then
+ {4 d* i% x, s <statement sequence2>;4 F& \% i. I% O- S! Y
...9 K& q$ g. ^- ^+ F- V4 X
else
) D3 k+ N) B. ~) \4 h <statement sequence3>;: `6 G) K1 R- S' O
end;
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2循环语句: j$ k# M! @8 M! o' _* b7 t
(1) from <statement sequence1>
8 R' x5 q, _% Z) K8 l9 E until <condition> loop
- }: s( L4 |8 Q: b' `: K- N9 P- h& Y <statement sequence2>;
. X/ U0 s, U& L9 W end;
+ e1 X. `3 \ w8 m7 Y7 u1 s (2) while <condition> loop
2 }" d3 ]! {& Z$ E6 O, ^ <statement sequence1>;
' l7 O- R- J* [+ {8 i end;# B7 b' O/ ^ m6 q i. |: C
(3) repeat ' y8 _/ W2 r. m
<statement sequence1>;
2 J+ i; W1 Q1 x H( K8 g until <condition>;; N9 e9 a, h5 S* I+ }
(4) for <condition> to <condition> loop1 ?+ w) U$ E) A* p; Z
<statement sequence1>;
1 F: e: L! H6 j9 {, j next;" D- W# g) H3 L8 K$ z
3中断语句
7 R: t f# ]( b waituntil <condition> prio <integer expression>;1 y& a9 p5 r+ Q0 Q- k8 }5 c
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以上为常用的函数！, _4 [% z* j- X2 D
还有很多，如有需要我把资料发到你邮箱里 9 B& G2 j$ e% c7 z8 ]1 `( ~' N6 x4 n
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