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发表于 2012-11-13 08:48:12
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1判断语句5 P; e" O% Q& L( N: |3 O1 s9 q
if <condition> then2 ]+ k) B5 W" t# ]% x
<statement sequence1>;
$ O5 G* j+ x9 q2 P- E elseif <condition> then
7 X" z3 _! ?0 y& Q" J <statement sequence2>;6 p6 n2 l) T9 p+ a, Y" Z
else + |, r# X1 O6 T' @
<statement sequence3>;
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如果分支比较多，用：
: x5 }) m. N& Y# |% L inspect <expression>
) w9 m$ F' O. r! |0 i7 S6 U when <constant_list> then& Z2 p) o2 j- D- c6 v& L7 P B
<statement sequence1>;; A$ E% e2 d3 t( o. E
when <constant_list> then
2 `+ O3 s/ S6 X# F% f6 T <statement sequence2>;
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else( E2 z* l8 W4 W* c4 k5 `
<statement sequence3>;
$ n9 B/ l1 f$ X, E( i6 Cend;# l0 M9 V5 j+ Q$ Z g/ i2 _2 k4 x' C
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2循环语句5 y. H: Q* o8 I6 g
(1) from <statement sequence1>6 ^) n" h% m) `- Y1 U2 m: G0 x
until <condition> loop! S7 i' k' b9 U% f0 W
<statement sequence2>;
?& f! Y/ Q; r; E M9 Y; g end;
! S8 X _8 O) x5 X (2) while <condition> loop0 G9 U7 R M/ ]2 F9 f! p/ z
<statement sequence1>;
) b4 r) C# D+ G3 Z+ o B end;
# R+ M' Q p( c$ } (3) repeat
4 t$ t# i+ ^ H& n+ j9 ~5 C/ x <statement sequence1>;. y! w- q9 I$ v7 \
until <condition>;
* k. i! M2 N/ b; b8 u" N (4) for <condition> to <condition> loop
5 A& B. o. c0 W( r F+ M7 N$ W <statement sequence1>;
0 i! W. _9 ~7 X m9 w: i9 q- k next;
- B$ V8 p( W" W; q8 i {7 L3中断语句
( ]% _* a' c0 h waituntil <condition> prio <integer expression>;( |) ]: o/ y' k. L$ t: V/ O
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# R* r) z0 i2 f5 |1 c2 ?, M以上为常用的函数！% S3 Q: E" a. T
还有很多，如有需要我把资料发到你邮箱里
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