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Remove specific characters from a string in Python
I'm trying to remove specific characters from a string using Python. This is the code I'm using right now. Unfortunately it appears to do nothing to the string.
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Reading a plain text file in Java
...formance always call sb.append('\n') in preference to sb.append("\n") as a char is appended to the StringBuilder faster than a String
– gb96
Jul 5 '13 at 0:58
2
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How to add pandas data to an existing csv file?
... I was able to accomplish it by re-read the 'my_csv.csv', then concat the new df, and then save it. If you know some easier method, please DO let me know. I appreciate!
– datanew
Nov 9 '18 at 21:56
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memcpy() vs memmove()
...or you risk undefined behaviour, while the memory in memmove can overlap.
char a[16];
char b[16];
memcpy(a,b,16); // valid
memmove(a,b,16); // Also valid, but slower than memcpy.
memcpy(&a[0], &a[1],10); // Not valid since it overlaps.
memmove(&a[0], &a[1],10); ...
What new capabilities do user-defined literals add to C++?
...ctor call:
#include <bitset>
#include <iostream>
template<char... Bits>
struct checkbits
{
static const bool valid = false;
};
template<char High, char... Bits>
struct checkbits<High, Bits...>
{
static const bool valid = (High == '0' || High == '1')...
C++ 读写xml方法整理（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...se
#define XML_FMT_INT_MOD "l"
#endif
#define BUFFSIZE 8192
char Buff[BUFFSIZE];
int Depth;
static void XMLCALL
start(void *data, const char *el, const char **attr)
{
int i;
for (i = 0; i < Depth; i++)
printf(" ");
printf("%s", el);
for (i = 0; attr[i];...
How do you echo a 4-digit Unicode character in Bash?
... the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
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Common MySQL fields and their appropriate data types
... that is either an ID or references another ID
DATETIME for time stamps
VARCHAR(255) for anything guaranteed to be under 255 characters (page titles, names, etc)
TEXT for pretty much everything else.
Of course there are exceptions, but I find that covers most eventualities.
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Java / Android - How to print out a full stack trace?
...("\n"));
if (cs.contains(replace)) {
return r1.concat(cs.subSequence(cs.indexOf(replace) + replace.length(), cs.length()).toString()
Characters allowed in a URL
Does anyone know the full list of characters that can be used within a GET without being encoded? At the moment I am using A-Z a-z and 0-9... but I am looking to find out the full list.
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