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How can I get a precise time, for example in milliseconds in Objective-C?
...ute * _clock_timebase.numer) / _clock_timebase.denom;
return nanos/1.0e9;
}
- (NSTimeInterval)absoluteTime
{
uint64_t machtime = mach_absolute_time();
return [self machAbsoluteToTimeInterval:machtime];
}
@end
...
Can two different strings generate the same MD5 hash code?
...7fea2' | xxd -r -p | tee >/dev/null >(md5) >(sha1sum)
c728d8d93091e9c7b87b43d9e33829379231d7ca -
008ee33a9d58b51cfeb425b0959121c9
They generate different SHA-1 sum, but the same MD5 hash value. Secondly the strings are very similar, so it's difficult to find the difference between them.
...
How to get the file extension in PHP? [duplicate]
...ay. pathinfo will only evaluate a string.
– foureight84
Dec 4 '13 at 22:36
10
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NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...eadRegStr $0 HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\{36B84F1C-C2C0-4B62-8643-98B3F4DAC8BB}" "DisplayName"
${If} $0 != ""
; MessageBox MB_OK "你已经安装${APPNAME}v1.2.0软件，这个版本太旧需要你手动卸载才能安装${VERSIONLONG}版本软件，按确定退...
Returning anonymous type in C#
...wered Jul 2 '14 at 16:55
craigrs84craigrs84
2,91011 gold badge2222 silver badges3131 bronze badges
...
Resolving javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path
...ertificate fingerprint (MD5): A2:33:9B:4C:74:78:73:D4:6C:E7:C1:F3:8D:CB:5C:E9
entrustclientca, Jan 9, 2003, trustedCertEntry,
Certificate fingerprint (MD5): 0C:41:2F:13:5B:A0:54:F5:96:66:2D:7E:CD:0E:03:F4
thawtepersonalbasicca, Feb 13, 1999, trustedCertEntry,
Certificate fingerprint (MD5): E6:0B:D2:...
How to set 'auto' for upper limit, but keep a fixed lower limit with matplotlib.pyplot
...), which allows you to set several parameters at once:
ax.set(xlim=(None, 3e9), title='my_title', xlabel='my_x_label', ylabel='my_ylabel')
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Convert character to ASCII numeric value in java
...e(string, false)); The result is: strings=This “is” strange T=84 h=104 i=105 s=115 =32 “=63 i=105 s=115 ”=63 =32 s=115 t=116 r=114 a=97 n=110 g=103 e=101 T=84 h=104 i=105 s=115 =32 ￢=-30 ﾀ=-128 ﾜ=-100 i=105 s=115 ￢=-30 ﾀ=-128 ﾝ=-99 =32 s=115 t=116 r=114 a=97 n=11...
How to get the day of week and the month of the year?
...swered Jan 27 '11 at 22:57
lucke84lucke84
4,11833 gold badges3131 silver badges5555 bronze badges
...
How to change the style of alert box?
... 50px;
text-align: center;
}
#jsconfirmbuttons input {
background-color: #E9E9CF;
color: #000000;
font-weight: bold;
width: 125px;
height: 33px;
padding-left: 20px;
}
#jsconfirmleft{
background-image: url(left.png);
}
#jsconfirmright{
background-image: url(right.png);
}
</style>
&...