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发表于 2012-11-13 08:48:12
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1判断语句
: r* O( {, G4 E- F9 ?# c2 j if <condition> then
( S6 S6 \; R/ {& h$ h% \ <statement sequence1>;
2 L1 R7 D0 ]2 J: J( ] elseif <condition> then4 ~6 x, ^+ J* L7 G4 x
<statement sequence2>;9 ~; n6 _5 P3 b2 j) ]
else 6 z9 h$ \- n. o. F! Z
<statement sequence3>;
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如果分支比较多，用：* {! I" j, A0 \% c; W$ j
inspect <expression>
; c5 E6 s o: R, i when <constant_list> then& y9 d" }% T" U: z' K
<statement sequence1>;
- a% n: G! W4 B$ @ when <constant_list> then6 j& S4 J8 Z( v! ~* R! v N
<statement sequence2>;& d; _1 z) D# H& S
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else
g5 U# L, Z$ M+ {! |0 J8 ` <statement sequence3>;
3 H; P- F/ U2 jend;4 n$ N! W- T" A) Z2 |
# Y! i1 U% E# E: T% c: R2循环语句
- e$ j' @2 c* b3 w (1) from <statement sequence1>
0 d- ~9 C! p( h" {2 G+ H until <condition> loop9 Q: ?# h% F5 l* \. o* D
<statement sequence2>;/ v5 T6 ~, m2 L9 Y% v
end;
* |5 K* o$ {, ]$ W (2) while <condition> loop
, y3 `- X$ c) Q t <statement sequence1>;# K1 E' D$ y, @- j. c) q' b
end;
9 E( T+ O" {9 f/ I' e3 p (3) repeat
( m/ l2 U& f) Q* G# r% K <statement sequence1>;0 ?' e$ g/ F) H
until <condition>;
& V1 T# g/ f/ L4 U (4) for <condition> to <condition> loop
6 u3 B) q8 J; B6 z- r1 S" t C <statement sequence1>;' q; B$ V2 G6 ~3 B0 ]
next;
2 s, o* z+ i; z% E3中断语句
. ~6 W+ d9 x: P/ B! w4 V, \( ` u waituntil <condition> prio <integer expression>;, }) f( v6 E- s/ b0 c4 N N' L
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以上为常用的函数！
# Q* S+ D4 ^; Q, @; ]; e5 f还有很多，如有需要我把资料发到你邮箱里
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