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发表于 2012-11-13 08:48:12
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1判断语句: x' M% b3 c8 ?/ G8 M. m, ?
if <condition> then( v. `# N4 {6 P
<statement sequence1>;' _8 l" l) g- m4 p5 d) b. j1 h( w* j
elseif <condition> then
) D2 f7 t; o. j2 ^8 _ <statement sequence2>;* c# e3 M! {% b* K( o, O
else 4 E# o( j. a+ U& X& x6 O( x
<statement sequence3>;8 c2 H( T, v, G0 S# U9 h% x4 M
end;
- C, m7 s1 T" G# Y, h& d如果分支比较多，用：
( H( I; J. j5 m4 O& V( L0 n- G4 d inspect <expression>
3 j( q9 X% Y/ [0 t# V when <constant_list> then
, ?: y- L/ J/ c3 Y I" r& W7 A <statement sequence1>;) X* k: i9 e- D3 h& m
when <constant_list> then$ D+ F3 T$ L' ]
<statement sequence2>;4 P; N* n* q# V! N5 E
...& P( g2 l8 N9 P( E
else5 j0 ?6 h# x! B5 ?% v5 y
<statement sequence3>;
: U* L4 }2 s8 O! qend;
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; E! ?8 o2 |3 m- F/ t2循环语句
$ @( x' `( V+ y( q (1) from <statement sequence1>
2 \9 M1 {% |, a% Z S2 I until <condition> loop% u1 b) y0 w- N3 g: _5 i% Y% ^ ^
<statement sequence2>;+ U- l# |* w8 j
end;- N8 e. Y3 E$ t5 S% O; E3 y
(2) while <condition> loop
% i* K Q0 O) P! r2 j <statement sequence1>;
+ r3 D% D7 V/ q end;
' x/ T) I( Q2 q( t. x# m (3) repeat 1 m( p' _9 a; w/ W. Y: j/ Y
<statement sequence1>;
1 c, W. V4 V! R7 P until <condition>;; d+ G4 _$ p( z# e% K$ B7 Q
(4) for <condition> to <condition> loop
2 f: F* }# g$ f3 B" A: p <statement sequence1>;
7 w% `2 P6 T1 d! Z% \! c* S, p next;& z3 `, i9 }$ Z& p: e. K- S
3中断语句
9 i0 l( O0 g, E. L; p8 B5 V waituntil <condition> prio <integer expression>;
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1 g8 @" G7 `0 A- `9 ^; K! D9 X! J Z, l6 T8 J
以上为常用的函数！
& V9 m/ z/ \" ?3 z还有很多，如有需要我把资料发到你邮箱里
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