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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
5 x( } d4 ?9 |9 g! K+ Y. l if <condition> then ~% C \6 K p4 W2 |" d a
<statement sequence1>;! r- }- C: h9 D8 K
elseif <condition> then
3 u- C& r, X3 r% y& n <statement sequence2>;
" ?& T: J+ E" U+ _; ~; S! z else 7 K3 t+ n. s! s( i* H( q9 M. r V' J
<statement sequence3>;; t Y% r! c2 J' W
end;
4 y" M+ L" {- y1 `/ Z- `4 A如果分支比较多，用：
# o& _% C4 F% B3 |8 I inspect <expression>7 E1 }4 K3 N @$ Y$ Y0 M' u
when <constant_list> then) c' }* D* ~# I1 D7 x
<statement sequence1>;: M% z t ?$ h1 w0 X. l
when <constant_list> then( ~, r* _7 |( j4 W( W
<statement sequence2>;( R, B8 }/ L, [7 O8 y( X
...+ O* y; ~ q, Q2 ]9 m; O$ D' s) Q
else
- I9 z3 s N' B <statement sequence3>;( n7 W5 P! g0 @0 d: _' \
end;
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2循环语句
$ o8 S0 n. w. W. V (1) from <statement sequence1>
. a$ e8 P! f5 G0 z until <condition> loop
, S7 I$ d' W/ ?( Y4 y. x <statement sequence2>;
* c7 r* u7 i" s: [0 f end;
1 t2 q2 W- o! v* A9 I$ ~4 ~ S (2) while <condition> loop
7 S, [: t, V5 o; n. l4 T <statement sequence1>;4 h5 w: M1 X, |2 `0 m2 J8 ]
end;
1 |2 X% z3 P( V% ^% S (3) repeat ) {4 T& ] m6 w" G2 ~# q
<statement sequence1>;
2 K: S" n( J6 t5 S until <condition>;
$ Z' u: A3 p$ w5 \$ d (4) for <condition> to <condition> loop6 Q5 ?+ `* q8 m4 a
<statement sequence1>;
, r' I4 t$ x' y) a next;
. G1 |/ E9 R1 P9 b4 g# N; Z8 @8 |3中断语句- e* L& z4 f" ]* ]# q$ _; I
waituntil <condition> prio <integer expression>;8 c# f. B$ f6 z" m4 C4 {5 g
2 z I, A5 z3 K" v$ U
0 D5 }% V- N3 d
以上为常用的函数！
, Q3 c4 |6 _2 p+ h: ]1 n# q) g; e; v还有很多，如有需要我把资料发到你邮箱里
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