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Hidden features of Perl?
... community wiki
3 revs, 3 users 85%pjf
4
...
Can I replace groups in Java regex?
...h "!!!" what was matched the 4th time by the group 2
// input: a1b2c3d4e5
// output: a1b2c3d!!!e5
System.out.println(replaceGroup("([a-z])(\\d)", "a1b2c3d4e5", 2, 4, "!!!"));
}
Check online demo here.
share
...
How to convert an array into an object using stdClass() [duplicate]
...prenume' => 'Bogdan', 'sex' => 'm', 'varsta' => 23),
'e5' => array('nume' => 'Vasile', 'prenume' => 'Mihai', 'sex' => 'm', 'varsta' => 25)
);
If you want to see is this stdClass object just call this
print_r($clasa);
If you want to convert an array to object ...
MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
...下：
> db.students.find()
{ "_id" : ObjectId("5031143350f2481577ea81e5"), "classid" : 1, "age" : 20, "name" : "kobe" }
{ "_id" : ObjectId("5031144a50f2481577ea81e6"), "classid" : 1, "age" : 23, "name" : "nash" }
{ "_id" : ObjectId("5031145a50f2481577ea81e7"), "classid" : 2, "age" : 18, "name...
How do I find out which keystore was used to sign an app?
...CD:0E:57:C5:44:40:97:CD:54:49
SHA1: 24:BB:24:C0:5E:47:E0:AE:FA:68:A5:8A:76:61:79:D9:B6:13:A6:00
SHA256: 3D:7A:12:23:01:9A:A3:9D:9E:A0:E3:43:6A:B7:C0:89:6B:FB:4F:B6:79:F4:DE:5F:E7:C2:3F:32:6C:8F:99:4A
Signature algorithm name: MD5withRSA
Version: 1
APK: ./com.goog...
Why aren't ◎ܫ◎ and ☺ valid JavaScript variable names?
...7\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0...
微数据库功能求助 - App Inventor 2 中文网 - 清泛IT社区，为创新赋能！
...考：https://www.fun123.cn/reference/creative/screen_communication.html#%E5%BE%AE%E6%95%B0%E6%8D%AE%E5%BA%93%E4%BC%A0%E5%80%BC
Alternative to google finance api [closed]
... API call:
http://finance.yahoo.com/d/quotes.csv?s=AAPL+GOOG+MSFT&f=sb2b3jk
(This will generate and save a CSV for AAPL, GOOG, and MSFT)
Note that you must append the format to the query string (f=..). For an overview of all of the formats see this page.
For more examples, visit this page.
...
VS Debug调试模式下内存泄露检测原理 - C/C++ - 清泛网 - 专注C/C++及内核技术
...at 0x003FDAB8, 44 bytes long.
Data: < P- P- > 80 00 E4 00 50 2D E5 00 50 2D E5 00 CD CD CD CD
Object dump complete.
如果内存块号比较稳定，可以调用_CrtSetBreakAlloc，将块号作为参数设置一个断点。程序分配这个内存时将break，再查看调用堆栈。
...
Using GCC to produce readable assembly?
...t;
int main(void)
{
0: 55 push ebp
1: 89 e5 mov ebp,esp
3: 83 e4 f0 and esp,0xfffffff0
6: 83 ec 10 sub esp,0x10
puts("test");
9: c7 04 24 00 00 00 00 mov DWORD PTR [esp],0x0
10: e8...