大约有 16,000 项符合查询结果（耗时：0.0173秒） [XML]
In C, how should I read a text file and print all strings
...
The simplest way is to read a character, and print it right after reading:
int c;
FILE *file;
file = fopen("test.txt", "r");
if (file) {
while ((c = getc(file)) != EOF)
putchar(c);
fclose(file);
}
c is int above, since EOF is a n...
Objective-C: Reading a file line by line
...e way of dealing with large text files in Objective-C? Let's say I need to read each line separately and want to treat each line as an NSString. What is the most efficient way of doing this?
...
Read an Excel file directly from a R script
How can I read an Excel file directly into R? Or should I first export the data to a text- or CSV file and import that file into R?
...
How to read the content of a file to a string in C?
...t lines of code, however you want to interpret it) to open a file in C and read its contents into a string (char*, char[], whatever)?
...
Read values into a shell variable from a pipe
...
Use
IFS= read var << EOF
$(foo)
EOF
You can trick read into accepting from a pipe like this:
echo "hello world" | { read test; echo test=$test; }
or even write a function like this:
read_from_pipe() { read "$@" <&0;...
mmap() vs. reading blocks
...
I was trying to find the final word on mmap / read performance on Linux and I came across a nice post (link) on the Linux kernel mailing list. It's from 2000, so there have been many improvements to IO and virtual memory in the kernel since then, but it nicely explains ...
A variable modified inside a while loop is not remembered
...
echo -e $lines | while read line
...
done
The while loop is executed in a subshell. So any changes you do to the variable will not be available once the subshell exits.
Instead you can use a here string to re-write the while loop to be in t...
How to parse XML in Bash?
...e, and comments don't allow formatting, so...
rdom () { local IFS=\> ; read -d \< E C ;}
Let's call that "read_dom" instead of "rdom", space it out a bit and use longer variables:
read_dom () {
local IFS=\>
read -d \< ENTITY CONTENT
}
Okay so it defines a function called re...
Optimistic vs. Pessimistic locking
...
Optimistic Locking is a strategy where you read a record, take note of a version number (other methods to do this involve dates, timestamps or checksums/hashes) and check that the version hasn't changed before you write the record back. When you write the record back...
File to byte[] in Java
..., don't reinvent the wheel and use Apache Commons. Which is here FileUtils.readFileToByteArray(File input).
share
|
improve this answer
|
follow
|
...