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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
/ ^2 D; a+ F" w! l: W if <condition> then( w: x t" e$ ?
<statement sequence1>;9 i& a( t4 g y. a
elseif <condition> then$ u9 e6 D0 O4 b
<statement sequence2>;
/ \6 B; Z$ ?; _0 |& r5 i1 j else
" x9 j. I# B( ]# U* a& ]1 R. L5 k <statement sequence3>;8 f# \) h& i4 ?
end;& s4 N! x9 ~: @ }; g% ~8 h+ K; {
如果分支比较多，用：1 Z8 E6 H* \* M8 J7 A. r4 ?+ L
inspect <expression>
+ P* ]; W8 D# U" y+ k$ [3 @ when <constant_list> then9 c, W7 A7 k) d* ?9 P
<statement sequence1>;$ |' ] Q2 k6 e1 z6 y; M
when <constant_list> then# k' @& e7 H5 [) a
<statement sequence2>;7 ?) {* H H6 F# G: \' y. w
...% C3 y( O9 y: V! y r5 k
else& ?. ]4 F+ [2 m, ` l9 k3 t* c
<statement sequence3>;
3 T+ \5 A$ ?/ t* q* W( Mend;
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2循环语句
6 i8 W3 ^0 S9 c8 w9 C) U (1) from <statement sequence1> a" `6 r4 X- q) m4 g4 c# y8 n
until <condition> loop# W' \0 s+ _; t7 e
<statement sequence2>;
: K4 I e( ?3 ]( U( D end;
3 \- `' B; k3 K (2) while <condition> loop8 R1 h' A) S" v; g: n9 g
<statement sequence1>;
; p" n! g$ }! q end;
1 I6 ^+ Y* s6 ^1 }2 {4 V' y (3) repeat
5 p& m1 F0 C8 e/ n0 ]% V0 O4 R <statement sequence1>;
7 M0 V- B% v. E* Q0 p* V5 i2 f until <condition>;" ]% a- j+ |" a6 d s$ Q" f
(4) for <condition> to <condition> loop
# x" I* l2 S- T4 i+ \ <statement sequence1>;
5 h9 F8 Y4 p$ k4 Z' g: E6 C next;: M- A( v9 }- i) \. M$ E. u4 S
3中断语句
$ H% X; }; Y) k" {. I waituntil <condition> prio <integer expression>; S7 m4 y& c6 n- m# l) F7 q
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+ [; P w' E( n+ K1 S! v2 i, I
以上为常用的函数！' c9 _" t2 g4 O3 y5 X
还有很多，如有需要我把资料发到你邮箱里 , x) R. V! J& K( ?+ m( e; b
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