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发表于 2012-11-13 08:48:12
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1判断语句
3 v. `+ l' o- W' b9 c5 |. f if <condition> then
5 |2 v& W0 N4 B2 `4 p <statement sequence1>;
8 f# U7 |, x6 T ~1 l1 P elseif <condition> then V- l" s8 _6 u9 b
<statement sequence2>;
6 d( P# T$ P# {+ t1 D( ] else
8 P4 C! \! U6 F <statement sequence3>;
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如果分支比较多，用：& E2 T2 I& \" r0 P& C7 g! p
inspect <expression>
4 G& M* a2 s- M8 m: Z when <constant_list> then9 Q; u! z8 J8 V
<statement sequence1>;
, D# x8 N A* E( r6 n when <constant_list> then# D" j: g4 `6 R# W# J% o8 g. e
<statement sequence2>;' H |3 u# ]/ N& P3 w3 O
...
* j+ Q0 }2 d; \( ^$ n7 Z else
6 ]. }( s6 i r+ V8 ? <statement sequence3>;& N. o& Q; n+ V, N0 Q2 W
end;1 v+ w( Z! t* M9 `! z6 ^
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2循环语句
& d/ ^1 C8 X' H* d6 U (1) from <statement sequence1>
. k: W* U% U- B2 { until <condition> loop
9 D q0 w6 h5 e3 {+ o, e( U <statement sequence2>;8 P- ?. j5 ~% s' }; U
end;+ c1 ^! C% Z P) w9 K( c' w O
(2) while <condition> loop
2 z# L6 v. F1 F- A <statement sequence1>;% _' E9 t! {# v) U9 T; _! |9 u
end;
/ n& M& g" B) [8 Q. X5 _ [9 E F( M (3) repeat & m0 E' b1 {4 q+ G' \+ u; Q% O' O
<statement sequence1>;
, {3 I' D: X) s8 Y( n until <condition>;
, ]% e! _" j; C- ^ (4) for <condition> to <condition> loop1 |+ A8 j5 Z, C* m. ~& T5 G U& A$ t; i! z
<statement sequence1>;
6 [/ p% {0 ]0 W9 C; I: y next;
5 t- [7 \( ^- _ A3中断语句
) B; m9 o" B8 I/ l waituntil <condition> prio <integer expression>;
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* T5 ~ }! \1 }) b1 M4 }以上为常用的函数！. c* p, G+ i5 k$ B* y( r# b
还有很多，如有需要我把资料发到你邮箱里 5 B8 r8 R. {9 L
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