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发表于 2012-11-13 08:48:12
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1判断语句( r8 A5 N# x; ~8 w
if <condition> then/ [$ B( \% w% {0 J: g1 u
<statement sequence1>;
5 x" x4 q2 e. c. Y/ E elseif <condition> then
- b J" l) k/ b/ w& z: i& k <statement sequence2>; x2 c' R" `8 r6 E
else ( Z7 q4 t: b: }$ Q' X3 a; o5 T
<statement sequence3>;: r! Z9 n) O G) @9 }7 o/ U, U
end;
; r& K- e/ k/ Y+ D6 G如果分支比较多，用：8 m9 r% v, i1 c$ O7 h% t% V
inspect <expression>
% w# \1 K( l) j- ?6 B r when <constant_list> then
# p9 _; k) z+ [! [ <statement sequence1>;0 z* Z5 r: D7 n. {- b
when <constant_list> then& m P! m! Z, V( F6 @, N& w8 A
<statement sequence2>;: }0 ?% ` R+ i
...
/ u0 T4 b e$ m else! D | _3 P) I+ c) }: k9 U
<statement sequence3>;
& ], B- H( T9 m0 M9 pend;
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/ N g, V3 t) R" J6 n2循环语句
5 @' K( x0 ^1 | (1) from <statement sequence1>9 I4 G/ c# ]* ~7 T# j, r$ n4 z& \5 z
until <condition> loop
+ M3 |( k) F. ] <statement sequence2>;+ Q1 J4 X- r% p- \) Z
end;
9 a3 U/ C. }( s (2) while <condition> loop, [* ^1 `0 O( S8 }2 Y2 w O# K
<statement sequence1>;
0 [) Z1 J- r/ B( {* R9 e end;
! J1 N. E K G9 |5 A1 L& ]3 r! r (3) repeat 4 V$ B% l" k) i+ w" g
<statement sequence1>;
! N8 N0 W& d4 \. o. \8 j! ?- O+ m until <condition>;
0 W$ j5 ?4 G4 y8 [0 m" C- } (4) for <condition> to <condition> loop) ]4 f/ m7 G* i5 S9 l e' Q
<statement sequence1>;* z ^5 a5 Q1 Q4 }" f. V! l6 z: X7 h
next;
, r1 X9 b* S- Q' @% h: U" U1 J+ m% l3中断语句' J/ o" i, V4 K& r: h
waituntil <condition> prio <integer expression>;
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以上为常用的函数！1 Q, U) b6 n e4 i; E$ U1 x1 R7 q
还有很多，如有需要我把资料发到你邮箱里
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