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发表于 2012-11-13 08:48:12
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1判断语句
* t( L, }5 q1 o+ ?9 z if <condition> then6 e M! H5 i4 i/ `% q( H
<statement sequence1>;
7 L) p* s! e! ^ elseif <condition> then0 n% c \1 g2 l" W. k4 B& H
<statement sequence2>;
0 _# i% j) B5 ^( B2 e6 C6 B; X else . ]5 O" j; X" q) t. p3 K
<statement sequence3>;* e0 m) W ]- P. G3 ~
end;2 Y* n& Z* \/ S
如果分支比较多，用：$ k2 _; s3 ?: u
inspect <expression>
/ Y5 S& Q5 W; _8 [" I& N1 e when <constant_list> then
+ B w, k D, S4 _) \' ~ <statement sequence1>;
6 U2 h/ C! h2 X0 T, A when <constant_list> then8 ]* ?% _6 ]) _# N
<statement sequence2>;* F a: V+ E$ d/ d% x0 V
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else" ]" z# H& Q% h' e
<statement sequence3>;
+ u" I4 e# B% }: `end; R4 l# P! @( K+ v. h! S# o) {
; e' I# {! y& u$ T2循环语句
7 X4 X- \* b# t, I (1) from <statement sequence1>8 S: {4 f2 L* `! N1 ?
until <condition> loop
% Z2 f2 A% r) X" e3 g5 y( k$ c <statement sequence2>;: {, E9 Q, A' F) W4 p9 m
end;
2 ~, L B8 Z: F& g7 I (2) while <condition> loop. b& t! R& r5 R
<statement sequence1>;
$ Q6 N* j. k# G6 v& W. u end;3 _: v; J1 \' [* N1 ?9 I' G: T
(3) repeat - |( T" ~, D- o$ u3 z
<statement sequence1>;) i8 l$ X% a4 u& u! B
until <condition>;% X0 r6 M, [- E: J9 Y; X0 e0 n; `
(4) for <condition> to <condition> loop
; f2 G+ A. b# ?) y <statement sequence1>;& T( W5 H* S/ ~4 j+ D% N
next;- W( |' Y) C1 ?; ?1 N) `/ X5 e% U
3中断语句
6 `: |6 d! Q7 T9 v% H2 x2 o: Y waituntil <condition> prio <integer expression>;
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& z+ i* q, ^$ B
以上为常用的函数！
. v: T7 m! Z# E. r' |+ j还有很多，如有需要我把资料发到你邮箱里
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