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发表于 2012-11-13 08:48:12
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1判断语句
8 T {2 }4 R4 t5 k if <condition> then
" \2 w0 r r5 d+ t <statement sequence1>;) ^0 e2 f2 J( q2 p" u6 P
elseif <condition> then7 D2 S" t2 C5 i- p1 J' h4 c1 z
<statement sequence2>;7 U; I- G) C3 M2 I
else
, x! {# m7 a I1 } <statement sequence3>;
8 Q/ J C5 `4 Y$ |5 B5 G3 p2 A3 ] end;$ w, @! R3 y! {, Z) @1 ~2 O
如果分支比较多，用：
# F, h/ c/ K" j' T0 }1 ?8 B3 P2 W; V' l inspect <expression>5 V* A, X$ _0 W W
when <constant_list> then6 W$ Z% g& I+ t% P$ K, l4 Y$ c
<statement sequence1>;8 i8 i: K: p/ o2 @
when <constant_list> then- l9 m% z% w8 x: I) w
<statement sequence2>;
: e# O: ]. i8 n5 r @ ...
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<statement sequence3>;
" O5 s; _) N( Eend;
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# v& a* ~; `$ E; Y& c A q2循环语句& c' |9 R S9 p3 s/ a& B( P+ Q& o$ |
(1) from <statement sequence1>0 H. Z6 U) @& U n \# C
until <condition> loop
; U0 e+ ]( B* B3 o" N' o <statement sequence2>;
2 _+ @+ N8 L8 k6 K end;
6 P3 k% E4 ~* u6 h6 ] (2) while <condition> loop
4 V. e8 A4 p# X @' j# z <statement sequence1>;) k% r. `4 N" E3 c9 L- M- ]9 s
end;
7 u! P4 k4 X. W$ g3 U- R" v& ^ (3) repeat
- V+ Z$ \. w' Z( R% v1 q <statement sequence1>;
" }( g0 @( S+ K. ?) h until <condition>;
( a; ^' D4 [5 d, t# }/ n4 E( A- G; j (4) for <condition> to <condition> loop
; c/ e B7 F/ F3 R <statement sequence1>;' }$ k0 w c. c3 s) U
next;
6 h0 j. C) a. S" S3中断语句
o" @2 J- i' |. A3 k0 M) s waituntil <condition> prio <integer expression>;8 F- u5 b1 Q6 S" l& N! t6 ]2 e
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" W- L; T6 A8 v3 j. b1 W1 V以上为常用的函数！
/ C5 H5 R" w6 R6 F2 X3 W0 i还有很多，如有需要我把资料发到你邮箱里 % n1 X) F- X% j1 z8 V- X( v1 s$ u, ]
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