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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
4 e( y7 M) |1 p0 A2 Y if <condition> then
; n& C, l% B9 S, O; A6 w! \ <statement sequence1>;
7 k' q2 t. t- _& {; s0 X elseif <condition> then8 J& ]' @; t/ v5 k& l+ x4 G' k
<statement sequence2>;
4 C, o$ K, @! | o7 a6 v else ; i7 \4 n0 e/ o) w' G3 }
<statement sequence3>;; d" P% N5 Z0 m6 V
end;4 X; j4 o$ p$ t. @ T; Y
如果分支比较多，用： W+ X; I8 z: L& F2 c3 b
inspect <expression>, \# V2 p: V, @! C
when <constant_list> then& F. }/ O) d0 j5 K! q
<statement sequence1>;
5 L, @7 i+ ^& W; p when <constant_list> then5 Z7 v9 x4 s ]
<statement sequence2>;
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else
+ p3 }; L: Z- b$ u% Z <statement sequence3>;
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2循环语句
1 q5 B' L- \ K (1) from <statement sequence1>+ k$ u' z* }- I ^; X
until <condition> loop
" D$ e/ k# c9 h0 |' r. [9 U) o# t <statement sequence2>;7 i% P2 Q S% K. N7 f
end;
$ Y' i$ B# p# V7 o (2) while <condition> loop: c' }! ~8 Z5 p7 t
<statement sequence1>;5 m% R$ _, ~' }
end;
/ Z" B+ S5 f. c- N% z ?, `; V (3) repeat
- _. T, t- I8 E2 G <statement sequence1>;! _8 U7 } i2 c, A+ S
until <condition>;
( Z; j9 J% l- L8 P4 s+ q5 `. g3 | (4) for <condition> to <condition> loop8 p" \- K n! A
<statement sequence1>;
& k3 r4 ~% F4 l: W next;" V. S7 c Z* J- ~# V4 a# j
3中断语句
5 }5 Q; x! P, Y) P, g waituntil <condition> prio <integer expression>;
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以上为常用的函数！9 y" i! y- e3 {$ C1 q4 Q" j+ E
还有很多，如有需要我把资料发到你邮箱里 7 {( c. V9 }1 E" ]# f# |
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