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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
+ N9 y; s( u3 ]- W& `3 g if <condition> then; {+ d& J: |. J* t
<statement sequence1>;; m% {7 Y9 a1 d3 \- Z
elseif <condition> then# Q$ z3 H9 O5 e/ v/ l9 u
<statement sequence2>;
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<statement sequence3>;
8 e z" C5 P* Q4 ]& `3 }( u: o end;
$ _/ `9 ~+ b/ I. M; ~) o如果分支比较多，用：
7 s2 X V) s) R$ |% c' ^: Y' { inspect <expression>
% K- Q( d0 `6 g/ o when <constant_list> then
- `# h; Q9 K& l, b# Q, q* ? <statement sequence1>;
% |" n( b8 E' @0 h' {. S when <constant_list> then
" a8 B; P6 _% e, x5 l% ^ <statement sequence2>;
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else7 t7 P0 N7 a+ w4 N
<statement sequence3>;4 }" f8 H, {" F0 e/ p/ b. B
end;* j( h/ k' ]$ s9 H8 ~2 g
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2循环语句
4 y$ {0 b4 [* k3 a8 g( j (1) from <statement sequence1>
" C5 V. R. Y0 O; v9 j1 f6 N; | until <condition> loop V" @. A9 f, q7 O
<statement sequence2>;
1 `/ ~" c$ w8 K6 \4 d end;
- h. E7 e5 l) o5 W6 E. X. B+ D (2) while <condition> loop4 |: f8 S0 {: A% J. D7 ^4 }
<statement sequence1>;8 q8 z; k& U& R3 D: t
end;+ S5 l/ p) v. e& I* ^; x: |
(3) repeat 1 n5 k# k) O, A& O
<statement sequence1>;
0 b9 m- w! g }8 D& c Z/ g until <condition>;1 }% R' T5 L3 s, g
(4) for <condition> to <condition> loop
2 S% U" o9 K: J3 K$ A <statement sequence1>;
+ l8 W/ w. o! M& g K next;8 Q# l1 Y9 K' C* V
3中断语句
3 m% p- N# ]+ E- ?) j) r2 v waituntil <condition> prio <integer expression>;/ \5 G: t' v+ [+ ^4 d `. V
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+ F5 l C- W+ `7 I% S以上为常用的函数！$ C7 v( A, ~% V$ K( q
还有很多，如有需要我把资料发到你邮箱里 0 m# b# u( P3 A% K- V+ x& K
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