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发表于 2012-11-13 08:48:12
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1判断语句7 T7 d8 o, V! W2 J! ]
if <condition> then+ l- F; C A" v1 x, \- k m
<statement sequence1>;+ E }, o% [: |# V3 v5 L
elseif <condition> then9 [9 A) ~$ f- r/ {
<statement sequence2>;+ a+ q' c, d# e Q
else o1 V& v6 w+ W5 U% k
<statement sequence3>;+ o4 E/ c2 {+ ]
end;
$ M+ n/ d4 |& i如果分支比较多，用：
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when <constant_list> then+ r3 Q/ Q9 ?5 ^4 H& `% N1 C
<statement sequence1>;4 e2 d) ~# F* }6 f/ P" n
when <constant_list> then! h P8 U3 ]. B7 I, D s
<statement sequence2>;
) ~, \! b0 {0 Y ?, n* {, ^% _ ...
8 U+ d2 v' ^! j/ s+ T# [2 K; E# g else& @) b0 ?/ _* i& I0 Q" A
<statement sequence3>;
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' o( R, Y+ V' T, z0 y; ~2 z2循环语句
3 e1 b# B; l& j3 l: c0 B m7 J# k (1) from <statement sequence1>
; S c( p0 t" K' [ @0 Z* n \ until <condition> loop
$ N$ v6 a* J# Y u/ K <statement sequence2>;/ v% k% f0 K% }# r. S/ e9 i
end;) Z/ z- `6 @7 \; J
(2) while <condition> loop
: ]& [: N( d. B <statement sequence1>;6 y, y' v4 X# C, N$ [# ~
end;
. a0 m1 D; ~4 Y2 l3 @/ H0 R (3) repeat 7 Q- C/ N3 G, X: W% [0 `! i* ?
<statement sequence1>;
; \2 f4 _. ~- V2 W until <condition>;2 A1 G4 Y8 K" Y6 m
(4) for <condition> to <condition> loop
) V4 S$ H; ~) S( n) h( t- G <statement sequence1>;( y( T: O* B1 h* r+ |% x1 Z
next;
9 ~- ]" r0 L, V* ]/ X% a3中断语句6 a9 k0 l1 q' g1 l0 L1 @; d+ r
waituntil <condition> prio <integer expression>;
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以上为常用的函数！
( i5 b8 S$ Y; P5 E6 F- L6 a还有很多，如有需要我把资料发到你邮箱里 0 n' L# h2 E# I( y" Y2 z
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