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发表于 2012-11-13 08:48:12
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1判断语句
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<statement sequence1>;& w- m& v+ S; O$ { _% O4 O
elseif <condition> then- E/ V/ k9 A8 Z, q: J8 D' {
<statement sequence2>;& K) ]4 u8 V2 k; X4 ^, k2 M% M g' D
else 8 P* |. ]3 b+ G, r- e w% M- E
<statement sequence3>;
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如果分支比较多，用：
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when <constant_list> then- L# N+ V- L0 ~+ T$ |
<statement sequence1>;* f" r& S. F5 ?; ~0 C
when <constant_list> then
' g7 F; q9 e7 i4 _) s <statement sequence2>;$ Y- ], @0 P% L9 @
...6 U1 e; J' Y/ ]2 y
else
- n4 T/ e7 ]8 p- h0 K4 i% ]; q" g <statement sequence3>;
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/ n7 l. y2 D9 ]3 C& o: o2循环语句* q" g% B; L. u5 ^+ c8 L
(1) from <statement sequence1>4 Q- E1 Q9 B: p$ c5 L5 o; i; V
until <condition> loop- k" w8 o5 f ^3 {$ w
<statement sequence2>;4 ]9 r% F! B( E
end;
$ o3 ^" f+ S a4 p (2) while <condition> loop2 e. c- B0 u* u4 n6 C9 h
<statement sequence1>;% ^! l+ i1 w7 B m# \2 U8 o5 [
end;
* G) E! g! S" w. w (3) repeat 2 b6 D, Z0 N, [9 u( a( \; U* S) ^
<statement sequence1>;0 m! y; _' Q; [! x& z$ E" \; y; a
until <condition>;
$ @9 m+ |3 V; Z* E% C/ c) }+ K% s (4) for <condition> to <condition> loop
. Z+ I, U% _' x9 Q# X5 x <statement sequence1>;7 `/ l( |9 {9 h1 Y& E
next;* i) |3 t* n. U M" S, r% E" y
3中断语句
7 M& ~7 f4 \( S$ v/ w& n waituntil <condition> prio <integer expression>;
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以上为常用的函数！
1 H' _. s- ^, {, Q1 `. U/ K% q还有很多，如有需要我把资料发到你邮箱里
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