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发表于 2012-11-13 08:48:12
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1判断语句
0 d* N( n# l4 { if <condition> then
0 G' w. j; G% t <statement sequence1>;' _$ ^, L1 v' l3 d4 ]! f/ u5 N
elseif <condition> then3 ~8 \4 T7 P G5 j1 U+ H$ j
<statement sequence2>;8 m; g: L# i8 m$ `7 |
else & a! p7 s) X: @" F1 e
<statement sequence3>;
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如果分支比较多，用：
, E) l a3 Y) O! b A3 a! x+ Y6 ] inspect <expression>
4 G0 a. _9 N, d& E" N. e- ? when <constant_list> then
( }6 t- [+ W% X9 C; P1 ?3 }- g <statement sequence1>;% w. |2 i( D7 v. z* K$ P
when <constant_list> then3 Q$ H6 p5 G6 j( O
<statement sequence2>;
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else
& }$ ~: Z- R) [) p <statement sequence3>;' l0 h8 l3 N6 o3 u5 `
end;
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" h* S+ g# `8 O( d* _2循环语句# u9 U* f0 ?6 ~& j' g) I, z% m. T
(1) from <statement sequence1>+ d$ A) c# J7 M/ [4 D/ ^1 l
until <condition> loop O% F+ \- e( c) d8 O! q m
<statement sequence2>;, }) `: }1 K! @& A; M
end;
! B' e g" m5 ], \3 x& { (2) while <condition> loop
2 y" [3 [8 T" o9 [/ i <statement sequence1>;% L8 B K5 a) Y- }' T- N
end;
, k T% l& H( |6 d3 A2 _6 m( ` (3) repeat % a8 |7 u) k3 n: j2 h- D
<statement sequence1>;
) c/ c0 ~. o% Z6 M$ D) v$ ~8 b until <condition>;
: b0 ~& N s8 | (4) for <condition> to <condition> loop. |' c1 {2 N; C% Z
<statement sequence1>;
6 t, u* {/ {3 F8 Y9 Q next;
1 |' ]$ u4 h3 A& |/ ?8 Q/ U3中断语句
+ L1 t! D4 @9 L3 V: R waituntil <condition> prio <integer expression>;
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以上为常用的函数！! q3 O' R" u0 _0 V
还有很多，如有需要我把资料发到你邮箱里
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