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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 w: ^. Z& Z5 v4 t if <condition> then$ U8 B0 h' f M/ B0 b* e: k
<statement sequence1>;2 w" t. X6 ^$ ` g6 v3 B
elseif <condition> then
8 ~$ |4 }+ m1 ` <statement sequence2>;( u7 v# T$ `1 g: N7 Z3 Q& a8 V2 P0 `
else 1 v4 ~6 B P4 t- z; ]' X
<statement sequence3>;: z' K6 D( e f. e- S* C
end;
4 \5 d$ ]" i/ B+ L如果分支比较多，用：+ _$ U9 J, e! R; O5 E
inspect <expression>& T& G9 S; }& y$ q/ n9 }' Z
when <constant_list> then
& R# B2 R- k( I) C5 R6 i <statement sequence1>;* B1 r% Y' I4 L1 n8 j
when <constant_list> then7 S) o. a7 r& S" ^; p
<statement sequence2>;
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else5 b5 O9 F% h! H/ y1 x' f: R' w
<statement sequence3>;! @4 h9 M) X9 Q) `
end;
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2循环语句
( S3 N i( ~* n6 i4 s3 Z5 M' c, j (1) from <statement sequence1>* ]5 X k, ~: {# B& a
until <condition> loop8 b5 { C9 S. I, ]
<statement sequence2>;
4 ]" f4 O/ q6 }5 \. f end;
' A7 X3 m0 v6 T% {# d1 m$ }) e (2) while <condition> loop$ \; S; z/ T8 T6 d M/ Q c+ g
<statement sequence1>;; \$ Y" M% A. F
end;4 B, C( [3 Q: v/ Y( l' [. {% A
(3) repeat
' ]! @% S- d5 ?" p6 c <statement sequence1>;5 }7 ^6 p+ A7 `5 C' w
until <condition>;
- V; j X, H; v6 b (4) for <condition> to <condition> loop
4 ` N* o" r& c/ t/ e5 d <statement sequence1>;
6 V; j) P+ S* G next;) d3 r5 P) b- c5 m
3中断语句
0 ]- G3 V' I S8 M+ e waituntil <condition> prio <integer expression>;4 ~3 z! H' E: r& W
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以上为常用的函数！
3 r2 }+ J4 I# E7 j( n* O4 @还有很多，如有需要我把资料发到你邮箱里
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