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LR中常用的C函数(转Zee版)

上一篇 / 下一篇  2007-08-26 00:15:50 / 个人分类:LR

1        strcat51Testing软件测试网,y9B/[c6ot+YZf)N
51Testing软件测试网9Z&~y1R"{4i'I
char *strcat ( char *to, const char *from );51Testing软件测试网0RlL)aw

"m.P x%j/zG/~m{&X0功能:链接两个字符串。51Testing软件测试网0^ ?(to Q{ V

RX0wX n`-kb*S0例子:
*LQ%|/Tt NH*^0
^ q-EoRBOG$T0这个例子是用strcat链接字符串:zee和slo@hotmail.com
~"@ Z0{-e0
2Q:AJ(e(c0脚本如下:
3wW/tRo1V(Zy4mv5K051Testing软件测试网1H#i1zb#Ad5s%POf
     char test[1024], *a = "slo@hotmail.com";
v3r-@z]&]+SV051Testing软件测试网 N:{l/[t&]"\%\
     strcpy(test, "zee");
zo a[&y ` P _051Testing软件测试网B ?uK1p C]4q
     strcat(test, a);51Testing软件测试网 w8V2L5X#FQwM8J*M

)`nhr"_W$kzS0     lr_output_message("We can see %s",test);51Testing软件测试网Z+Q4NB6I)S|lB
51Testing软件测试网#[s0C N3}o%]1] q
51Testing软件测试网dk_4vr
运行后在executon log中看到如下语句:51Testing软件测试网/B|%?7Ul3^(zo7M/L
51Testing软件测试网-SN9V(so
Starting action Action.51Testing软件测试网o-pC%Q-f
Action.c(16): We can seezeeslo@hotmail.com
E b%v8nPC U!FJ051Testing软件测试网5c L"iA5o%|6Azi&kL
2        strchr51Testing软件测试网7uN9z-o:P?
char *strchr ( const char *string, int c );51Testing软件测试网nj)Xdl |W
51Testing软件测试网}ak8X7w2q
功能:返回字符串中指定字符后面的字符串。51Testing软件测试网0q*pnDV[

$EAU%MJg"]0例子:51Testing软件测试网v6bM:Z O4ya _&B

U(k#F7EFL0这个例子是返回第一个出现e字符以后所有的字符,和最后一次出现e字符以后所有的字符。51Testing软件测试网 R'm(pV#aCE*F.u].],e
51Testing软件测试网]D*s Im*i r
脚本如下:51Testing软件测试网:a0\6]$z u|YO(p
     char *string = "Zee is a tester";
6JX y'zqHf0     char *first_e, *last_e;
(L#wyy%b ?9R5S051Testing软件测试网"W%@0fLe&mTqL u
     first_e = (char *)strchr(string, 'e');
%f p'S7GT%Q6S~\0     lr_output_message("We can see the first occurrence of e: %s",first_e);51Testing软件测试网oV{5?,Bi;v%@Yf
     last_e = (char *)strrchr(string, 'e');51Testing软件测试网]xzX U4K n _7i
     lr_output_message("We can see the last occurrence of e: %s", last_e);51Testing软件测试网X0o5q i9l7h5I"O'L
51Testing软件测试网a;a},?TP6g
运行后在executon log中看到如下语句:
mOI MQL:g7a0Starting action Action.
HJ$C;A1l@0Action.c(12): We can see the first occurrence of e: ee is a tester51Testing软件测试网&E0sZ6s7n+E!m^J
Action.c(14): We can see the last occurrence of e: er
}4a0r)}EL S X(c03        Strcmp&stricmp
jh \.L0vb0int strcmp ( const char *string1, const char *string2 );大小写敏感。
@.l8v{0^:T d TW0int stricmp ( const char *string1, const char *string2 );大小写不敏感。
T/Ji H2u ?051Testing软件测试网Ppy-~bN
功能:比较字符串。
-V(C}"qDB3N:R0
-E9q~ME;s di0例子:51Testing软件测试网 d(EN:x@WH.ET l

Dv5{3u9Yg}'t Y;Z0按是否区分大小写对比两个字符串,并打印出它们的大小关系。51Testing软件测试网W"Ml#O:z.R BO.o8hu

w2eTFl(|,AS"|8m0脚本如下:
0ZuF@k,o3f'd#@0     int result;
3\'C4Vi#wC0     char tmp[20];
9s3h ~m+s.HH0     char string1[] = "We can see the string:ZEE";51Testing软件测试网 U0~u%F;igE
     char string2[] = "We can see the string:zee";51Testing软件测试网KF%s,^1N8h

HPC:Ml w+B0     result = strcmp( string1, string2 ); /*区分大小写,比较字符串 */51Testing软件测试网NK8ia(aM7VH#h

b~?`#SQ fr0     if( result > 0 )51Testing软件测试网#E-tqzf!hQ
          strcpy( tmp, "大于" );
C*l S_uz\o l0     else if( result < 0 )51Testing软件测试网!D6O3yrZA6O;T
          strcpy( tmp, "小于" );51Testing软件测试网f*Md.QK7}TN
     else51Testing软件测试网jT |5~[.S u
          strcpy( tmp, "等于" );
La'e;Z+HLa&T0
W4[,f xM$`0S&R%w0     lr_output_message( "strcmp: String 1  %s string 2", tmp );51Testing软件测试网u]5bvN*n1N

@2|-|^(Mk$x In0     result = stricmp( string1, string2 ); /* 不区分大小写,比较字符串 */51Testing软件测试网Zng5P-M

;m L C:VN%?0     if( result > 0 )
Thn9N!m2]0          strcpy( tmp, "大于" );
|9Bw4?R+]g[0b0     else if( result < 0 )
8\ c1Iq.~4m#n'?#c0          strcpy( tmp, "小于" );51Testing软件测试网@Wf/O1W
     else
|KC5l6JH0          strcpy( tmp, "等于" );
1~RvF3j ~+|0
No-g)hp h'wmm0     lr_output_message( "stricmp: String 1 %s string 2", tmp );     51Testing软件测试网2@ nqr&K'a7tI

B(`x"o w0运行后在executon log中看到如下语句:
(p7bz J8_6G6l0Starting action Action.
_,i$^I8L\,p;E] D0Action.c(22): strcmp: String 1  小于 string 2
:uQ,Cr @0{+C7fq0Action.c(33): stricmp: String 1 等于 string 251Testing软件测试网D`1s%z M8McR
   
s0q3R-? | G)JeU0q04        strcpy
,j(kTN$[i0char *strcpy ( char *dest, const char *source );
%Ivb$]!{ tc8w0
Z0W;k3Zi6i0功能:复制一个字符串到另一个字符串中。51Testing软件测试网!l!PI![G

N^s8Q Ww C:`0例子:51Testing软件测试网 lBknt8K

(QW8\,n`6o9T0复制一个字符串到字符数组中,并打印出来。
(hC+kB/S!bd3@051Testing软件测试网ks9l^&{6P.GM^+y
脚本如下:51Testing软件测试网 OO,F.z,r{

b [&j(k PG7s#F0     char test[1024];51Testing软件测试网}i2`K?"@;C7|e
51Testing软件测试网A[!i R h]*u
     strcpy(test, "what can we see?       ");51Testing软件测试网@ ydt2y

(Z3p+}4tl~L0     lr_output_message("%s", test);51Testing软件测试网(Iv ~%nSH;d

}8?z|C_4W4C.l0运行后在executon log中看到如下语句:51Testing软件测试网]dW},L'@'a.EL
Starting action Action.51Testing软件测试网q2Wp5iH$F WN;W
Action.c(10): what can we see?      
T3MA e9]Iw05        Strdup
^!h`%?&_0char *strdup ( const char *string );51Testing软件测试网8m$|n9@(A

Z ^ @7k&~gIf0复制一个字符串。51Testing软件测试网B5fw} ASQhJ;E

O;Cq3_)Vc-n0oM}0例子:51Testing软件测试网)VM9gMg[[UN

| FC)f v)O/sV0在这个例子中,Vuser的组名被转换为小写字母。但是lr_whoami把组名作为静态buffer返回。这样的buffer不能被操作。如果有操作需要,就复制这个静态buffer。
~C#V~N.g0
Zj? a X/nnO0脚本如下:51Testing软件测试网 _5};rx8~#S/C A
51Testing软件测试网 e6BI#UB ] w
     int id;
o&c6Bp9`l ~ g;G0     char *groupname_static, *groupname;
Dv!]HG` ~ e ~0
$~-s(KF)b0     /* 从VuGen中得到组名 */51Testing软件测试网t-c+~{{(F
     lr_whoami(&id, &groupname_static, NULL);51Testing软件测试网Z*US M'GN?b
     lr_output_message("groupname=%s", groupname_static);
!kc;`2]F}-Nud3l051Testing软件测试网N$R@;yY$B"n L
     /*复制这个静态组名以便我们可以操作它  */
W'VjO,\(i0     groupname = (char *)strdup(groupname_static);
%kv0i*Y G|9X7b-EG0     groupname = (char *)strlwr(groupname);
|@0Z%?(?.Q0     lr_output_message("lower case groupname=%s", groupname);
oV0{M|*lI9s"nOL051Testing软件测试网v6GJ$~ww
     free(groupname);
{#H|"H _'P&T)c1jX0上述脚本用vugen保存为:CHANGE51Testing软件测试网nT?k4O(D*k]

o [f6d4e6PLt0在controller中运行(设置为总是发送消息)
.MhVIR2s(p6n ]0运行后在log中看到如下语句:51Testing软件测试网9Ow.?zC:X0Re k
Starting action Action.        [MsgId: MMSG-15919]
` kk/|l0Action.c(11): groupname=CHANGE        [MsgId: MMSG-17999]
6{ s5`i+wL.vcF0Action.c(16): lower case groupname=change        [MsgId: MMSG-17999]51Testing软件测试网'bi G#C.gju

!c/ck0t2l+}$z k0
6        Strlen
q8I,{$k5O*n:i,E0size_t strlen ( const char *string );51Testing软件测试网I%x-@'@4_B

!r,z0GOv'u\H0功能:返回字符串长度(bytes).51Testing软件测试网7M/a q3IU+V
51Testing软件测试网*JGF$oND
例子:
]`&~\ `L051Testing软件测试网_2Utke0mCOh&lO
这个例子很简单,就是得到一个字符串中的字符的个数。然后打印出来。51Testing软件测试网.Y:U3Dc W*_5cTK

E-RA4m3B1WJ0脚本如下:
'{BDu#mgc051Testing软件测试网#`h2SgK ^ X|
     char *str = "Zee is a tester";
N.M[ C4wa4M;tc0     unsigned int len;
1B2~9_x8OJ'p0
6w+K%mv;kV*{_0     len = strlen(str);51Testing软件测试网'p\#Z E*A

LD"Ue[0dm;T0     lr_output_message("The  sentence has %d letters",len);51Testing软件测试网 W9gRi\"s7J

3R#j8du~ A!m0运行后在log中看到如下语句:51Testing软件测试网?mNAd0^Y c x
Action.c(13): The  sentence has 15 letters51Testing软件测试网'q'xd#Z rbJE
7        Strncat
v*U5k2md QIj0char *strncat ( char *to_string, const char *from_string, size_t n );51Testing软件测试网2J%W'R]%z7q
51Testing软件测试网9LJ"q*D,H3p_*Zux
把一个字符串连接到另一个字符串后面。
^x fU|G;x051Testing软件测试网W~+i^s#zmC
例子:
{k(lS+eXj9t051Testing软件测试网0i L F-Xo0B
在这里,我随便写了两个字符串,用此函数把他们连接起来,并打印出来。51Testing软件测试网.g&ZB(T bo2I9J:[
51Testing软件测试网7[&E;VJf.C[1u
脚本如下:
1uE7JG"X051Testing软件测试网7~Ra7}ye4T

j^7O%lV)zW}Q0   char str1[]="Zee is ";
C$ePU'KL%W0    char str2[]="a tester.";51Testing软件测试网m7LE+E J w
    lr_output_message("What can we see?");
;C*].In/GD|9vr0    lr_output_message("The str1 is %s.",str1);51Testing软件测试网|Ge}6[1H
51Testing软件测试网e;w F4e8M!~ Z
    strncat(str1,str2,20);
W tO*L p SJ_B,p8W0lr_output_message("The str1 is %s.",str1);51Testing软件测试网6i2y @9k[/Af2D@ H|b

v@8VKTsCS*R&|0N*E0
l!\ M s%{h1A_]0运行后在log中看到如下语句:
vkw1[3K.`$|9C0Action.c(9): What can we see?
"\Vl"SMb']0Action.c(10): The str1 is Zee is .51Testing软件测试网 k4N L6g4uWu V$W$U
Action.c(13): The str1 is Zee is a tester..51Testing软件测试网)[XkVb.FF {
注:我们可以看到,没有连接前的str1是:Zee is,连接后的字符串是:Zee is a tester。也可以看看strcat函数。
l3k'['X[oPTK%o08        strncmp51Testing软件测试网9@P2{PZE!i e
int strncmp ( const char *string1, const char *string2, size_t n );51Testing软件测试网 ]$C/bRO/c9S`;]JC
51Testing软件测试网mu+`:fm?*Da
对比两个字符串的前n位。51Testing软件测试网7E1_6u~IFq

uI U2{ P,@.C,f_-h0例子:51Testing软件测试网U,z)}q%ML3h

/h)TRV3h_0对比两个字符串,并把对比结果打印出来。这里我和上面的strcmp一起写。51Testing软件测试网Dqw2s%L b*PE
51Testing软件测试网BiK E1gv z!`0D
脚本如下:51Testing软件测试网2]/K&x.^!QmzyG

e1Y6kBZFA0I@0    char result;51Testing软件测试网wHh7RW*R p]*O2d oT
    char str1[]="Zee is a tester.";
h;Jj$dwA2K/v}0    char str2[]="Zee is a tester.";
)f[ P+[3JPv0    char str3[]="zee is a tester?";
m1rh} yUa1| Vs0   
QY'x-@8zu4F ?0    result = strcmp(str1,str2);51Testing软件测试网G1J\5hE$ja%R

.`-w/Q/h)G4z7R0    if(result > 0)
.J?9]P8n6d0         lr_output_message("str1 is greater than str2.");
'r z5|si\/hh,FV0    else if(result < 0)
`dG*} {.b[$^0         lr_output_message("str1 is less than str2.");51Testing软件测试网$@+B:?W_fK S
    else51Testing软件测试网P+i l\G+O
         lr_output_message("str1 is equal to str2.");
.HR6i7^p!t"}tX%~#d0   
)BO&[Q;^W-b4csSM0    result = strncmp( str1, str3 , 30);51Testing软件测试网vt'~$o5B-X

W/\:tuh ZN7w051Testing软件测试网S J,})ul)[
    if(result > 0)
iT7K~;DLh0         lr_output_message("str1 is greater than str3.");
%_Df7De;V g&\0    else if(result < 0)
q9~Y8bic*m:|5AK0         lr_output_message("str1 is less than str3.");
4~-e r'~B0    else51Testing软件测试网G.KRm2NLP(a
         lr_output_message("str1 is equal to str3.");
d Z2d[t-v7e'x051Testing软件测试网w'JO&v!{,k}Iq
运行后在log中看到如下语句:
e-dgq4x eCaO0Starting iteration 1.51Testing软件测试网Eh5_%}0cM8NlQ
Starting action Action.51Testing软件测试网E R}t8v5EcZ ~
Action.c(18): str1 is equal to str2.51Testing软件测试网zSV2P4O)r/H1@9L
Action.c(28): str1 is less than str3.

WZ+Ydc wN0

TAG: LR

 

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