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发表于 2012-11-13 08:48:12
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1判断语句
$ T/ r% y% }8 G% O( ]; c if <condition> then4 g4 F9 M; G2 P- u
<statement sequence1>;8 Y: r- u8 {5 |* r- v# u6 n
elseif <condition> then# n2 D, K% E7 e/ ^5 x; J( b0 Q1 C
<statement sequence2>;1 K6 J5 l* S. y4 D
else 1 i- v3 X0 b9 j) Y) H
<statement sequence3>;
8 u: ?3 i1 q3 N) v; { end;
7 Y! M2 C! n4 Q$ r/ {# ?# J如果分支比较多，用：
) l% a! e" D& } inspect <expression># T; Y( P2 v! D9 ^
when <constant_list> then
2 J4 v7 A3 q9 Y4 q( s <statement sequence1>; E H0 g5 m7 N1 V0 |/ e4 @, V
when <constant_list> then
* ?9 J: l0 p& d i* H. u1 ^3 Z <statement sequence2>; F \4 c, N9 i
...
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<statement sequence3>;4 B7 q2 E- d9 K1 {) d, m, J
end;
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2循环语句$ |+ k% Y* }( W" w
(1) from <statement sequence1>) p0 Z9 o) i' `% ~! B. i0 |7 v
until <condition> loop7 Y3 }7 N; e |' Y, ?/ S: D
<statement sequence2>;
$ ?1 e* p2 }8 d end;; \; a2 H' s/ d1 J
(2) while <condition> loop
. C" _/ ?5 G5 L <statement sequence1>;
* ^9 u. `7 k/ l6 e( Y! i$ y( ?: K ^ end;
3 l$ M, ^* D5 v (3) repeat ( u/ a+ M% T4 G7 _8 v/ r0 ?9 v
<statement sequence1>;
4 J1 G+ }* k* f; r% B) q: r until <condition>;
# m$ M+ n; ~) O( ^ (4) for <condition> to <condition> loop5 |4 Y4 z3 }' V9 s
<statement sequence1>;" R. r. l; A% }# F! `
next;
7 F" H }% j9 _3中断语句) v+ A: {2 u; v) {8 `* Z( f# `
waituntil <condition> prio <integer expression>;
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5 }1 G7 B4 P: ^ K4 ~- k- }. g( }以上为常用的函数！( V/ w5 `+ x) m* e2 T3 X. O
还有很多，如有需要我把资料发到你邮箱里 $ U& o" s6 t) |0 z! k3 o
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