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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
/ ^' ~8 u5 c8 ?5 K5 I if <condition> then+ z/ q9 }% d) f) |$ `* ~8 P
<statement sequence1>;
# r4 Q9 R) I' D9 L$ r% U elseif <condition> then
& }3 B: G. x: T) \ <statement sequence2>;
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<statement sequence3>;
6 ^) y1 ^2 G+ F- ]9 S: \& w0 ~ end;
0 j9 r' q* m, d* R H7 {如果分支比较多，用：- {% o/ Q) Y0 B" g
inspect <expression>+ }, A& b4 a$ ]+ R' c( P
when <constant_list> then
9 U/ B: `' Q. j) Z" y <statement sequence1>;. [6 |* h7 k8 q% ~. T. n- s$ I2 }1 a% j
when <constant_list> then
! `. q9 E# ~; \9 _/ Z0 B* B# b <statement sequence2>;. p$ O4 s: M$ E& D3 w. Z
...
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<statement sequence3>;& n# \6 S. q5 I* ~- [
end;% X/ ^5 n( B% C$ |8 w( ?4 c' F
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2循环语句! r, E/ Z+ Z8 O; F
(1) from <statement sequence1>: k) q' B# I. q1 D$ C ?
until <condition> loop, o+ ^$ q3 f4 ^4 w: B
<statement sequence2>;
4 T1 l: L# m0 _" ?7 o end;& {9 i2 [6 h) I: T4 j6 e5 J/ \
(2) while <condition> loop' L7 z; {) D; R7 C
<statement sequence1>;6 n7 `, a7 J9 X: s; l
end;
/ o- H1 Z0 P9 k0 C0 d4 B/ W9 R/ G (3) repeat + b4 s6 ^: U2 N! _# N
<statement sequence1>;9 B$ Q T0 a) F$ q" Y9 n
until <condition>;$ s, f4 [1 i1 u' I/ `3 r3 M8 c+ g2 k
(4) for <condition> to <condition> loop
) b6 K6 B G, p$ {9 P/ { <statement sequence1>;, T) U! T1 \; v# k4 e J1 L* @5 u
next;
2 \7 ~* z' W4 ]1 l3中断语句 S& ^2 w7 b. F! _
waituntil <condition> prio <integer expression>;
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1 X5 i0 C/ f+ k' r$ V% `9 x4 |$ W$ P以上为常用的函数！! q$ ~! Q0 g. P% m) Q
还有很多，如有需要我把资料发到你邮箱里 8 k2 _" A% a6 n1 G& L6 h& m% k7 P
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