大约有 18,000 项符合查询结果（耗时：0.0263秒） [XML]
Only read selected columns
...t 7 columns are "integer" and we set the remaining 6 columns to "NULL" indim>cat m>ing they should be skipped
> read.table("data.txt", colClasses = c(rep("integer", 7), rep("NULL", 6)),
+ header = TRUE)
Year Jan Feb Mar Apr May Jun
1 2009 -41 -27 -25 -31 -31 -39
2 2010 -41 -27 -25 -31 -...
How to view the assembly behind the code using Visual C++?
...is go to project settings -> C/C++ -> Output Files -> ASM List Lom>cat m>ion and fill in file name. Also select "Assembly Output" to "Assembly With Source Code".
Compile the program and use any third-party debugger. You can use OllyDbg or WinDbg for this. Also you can use IDA (interactive disas...
Why am I not getting a java.util.ConcurrentModifim>cat m>ionException in this example?
...r's own remove or add methods, the iterator will throw a
ConcurrentModifim>cat m>ionException.
This check is done in the next() method of the iterator (as you can see by the stacktrace). But we will reach the next() method only if hasNext() delivered true, which is what is called by the for each to c...
Fastest way to reset every value of std::vector to 0
... answered Jan 13 '12 at 9:49
m>Cat m> Plus Plusm>Cat m> Plus Plus
108k2424 gold badges181181 silver badges212212 bronze badges
...
How can I view the shared preferences file using Android Studio?
...ll look up how to access the info through my program then output it to log m>cat m>. Hopefully, though, I can just view the file on the phone directly as it is much simpler. Thanks.
...
Git authentim>cat m>ion fails after enabling 2FA
...
On linux, you can authentim>cat m>e your GitHub identity using an SSH key.
1) Generating a new SSH key (source)
Open terminal.
Paste the text below, substituting in your GitHub email address.
ssh-keygen -t rsa -b 4096 -C "your_email@example.com"
This crea...
Skip certain tables with mysqldump
... dump their structure, you can run mysqldump again fo those tables, and conm>cat m>enate it onto the backup you just created
– carpii
Jun 25 '12 at 15:18
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Calling JMX MBean method from a shell script
...read an attribute:
me@oddjob:jmx$ cd log4j/root/attributes
me@oddjob:jmx$ m>cat m> priority
to write an attribute:
me@oddjob:jmx$ echo "WARN" > priority
to invoke an operation:
me@oddjob:jmx$ cd m>Cat m>alina/none/none/WebModule/localhost/helloworld/operations/addParameter
me@oddjob:jmx$ echo "myPar...
Open terminal here in Mac OS finder [closed]
...if any, else it will create a new window). These Services work in all applim>cat m>ions, not just Finder, and they operate on folders as well as absolute pathnames selected in text.
You can even assign command keys to them.
Services appear in the Services submenu of each applim>cat m>ion menu, and within th...
In C, how should I read a text file and print all strings
...d.
If you want to read the file in chunks, but without dynamic memory allom>cat m>ion, you can do:
#define CHUNK 1024 /* read 1024 bytes at a time */
char buf[CHUNK];
FILE *file;
size_t nread;
file = fopen("test.txt", "r");
if (file) {
while ((nread = fread(buf, 1, sizeof buf, file)) > 0)
...