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发表于 2012-11-13 08:48:12
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1判断语句
! W0 A1 b' { ?) s if <condition> then
) ?: ~- {0 ?* |8 |! y& J <statement sequence1>;% V3 D! t1 P! ]* k! J. i
elseif <condition> then/ q. r' d, N2 H' R; y
<statement sequence2>;1 h4 B3 X' ^% `: M% o, l* W3 o; N
else 7 G# f( v. ~5 V/ ~8 i; W5 L
<statement sequence3>;
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如果分支比较多，用：
# f) T$ c0 v% y) T5 w% X2 D8 ^& U inspect <expression>- b! f5 |$ z# F% a! f
when <constant_list> then- V2 z$ t4 T1 E7 e# ]( ^
<statement sequence1>;
9 c* n! Q/ j5 I) ` when <constant_list> then
3 H* R; @5 Y6 c' ^: d( c# d$ u <statement sequence2>;
! C+ C5 U \0 z ...
) k' V7 D; q# j4 y else
0 k. { b! S1 u& `' I5 O) b <statement sequence3>;
$ e( N& P, ?4 m% Rend;
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2循环语句7 ?* A4 O) N: `7 V
(1) from <statement sequence1>/ I0 I5 Z q7 W+ J: @
until <condition> loop( a& n. o! o% q
<statement sequence2>;# _4 t( Y: `: [/ g6 G1 m- Q I
end;
& U; I7 P. [9 t; I2 a (2) while <condition> loop
$ H6 ^4 w' M+ p* R <statement sequence1>;) l. L" p5 N' Z# G3 O7 m7 d) B9 ]+ S
end;
u$ @+ ]3 N2 Q* k1 @* y (3) repeat
Z+ x- b/ t% `7 R5 ] <statement sequence1>;
: ]5 e4 X. u1 x2 m until <condition>;
/ }# D* c- t: |) A, g- O (4) for <condition> to <condition> loop/ l# F. H( n# h4 Y
<statement sequence1>;2 I- J8 J0 A3 i }9 B6 f3 n
next;
& y3 S# _5 Y# P3中断语句8 `; }) K, q7 |# R- R. u
waituntil <condition> prio <integer expression>;8 I% y' }) Q% |
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以上为常用的函数！1 {1 S+ d. g2 M" V7 y: j+ g8 D
还有很多，如有需要我把资料发到你邮箱里
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