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发表于 2012-11-13 08:48:12
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1判断语句# q V& B s9 C6 Y3 A
if <condition> then
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elseif <condition> then" J6 {" P1 j' q
<statement sequence2>;
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+ }8 }/ P6 t9 D, n <statement sequence3>;* @! z! f3 D- c1 j" e3 M
end;5 o$ y: O* y/ i! `$ W+ a$ H, @
如果分支比较多，用：
1 v, K( T9 B0 Y) ^ Q' R7 X8 Z inspect <expression>
9 J; l z% t( J# h when <constant_list> then# c0 O }* G7 t- g( q# G
<statement sequence1>;
6 S" q* ?1 I/ p8 [$ J when <constant_list> then
* _6 g. e! u" o+ A- Y <statement sequence2>;
' M# C5 r2 y0 L ...
" R( v2 F8 q7 `& U else
|) {$ X; E" x z <statement sequence3>;2 p( a2 I6 G) [! c
end;8 Z- Y# {9 I: p
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2循环语句
" z2 o; j& T3 g6 l" e (1) from <statement sequence1>1 }" p% c* W0 l- u5 G+ o) @6 z, `
until <condition> loop! X* S4 n& d7 L2 b3 r
<statement sequence2>;
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(2) while <condition> loop
' U7 c# m. i/ c& S; v, d <statement sequence1>;3 j+ |- Z1 G+ m/ ?9 F
end;
# ^( y( Y* H0 S" F9 ~9 D( F (3) repeat : n, _; j0 x7 r, {) N/ f4 }
<statement sequence1>;3 F2 y( {6 f- S" V b( |5 K) I
until <condition>;+ }7 T9 w3 x' Y" `4 z$ L9 s2 [
(4) for <condition> to <condition> loop$ L, l( J V2 W4 ^* |
<statement sequence1>;! f% N2 Z6 K/ b+ }$ L; @3 v( j
next;
5 U O& H5 ^. i/ E! X' \3中断语句 d+ a2 Z' t* I+ U
waituntil <condition> prio <integer expression>;# J& O$ X. E* M$ x
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7 ]7 t$ o5 s8 [1 w& M1 Y; e. t以上为常用的函数！
! c6 o7 v: v1 a H还有很多，如有需要我把资料发到你邮箱里
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