Question

如何把qstring转化为qbytearray

Answer 1

QByteArray与QString之间的转换：
示例：
[cpp] view plain copy
QByteArray cstr("abcd");
QString s = cstr;

QByteArray cstr("abcd");
QString s;
s.prepend(cstr);

QString s("hello");
QByteArray cstr = s.toAscii();

QString s("hello");
QByteArray cstr = s.toLatin1();
QByteArray类同样不以'\0'为结尾：如
[cpp] view plain copy
QByteArray s;
s.resize(5);
s[0] = '1';
s[1] = '2';
s[2] = '3';
s[3] = '\0';
s[4] = 'a';

cout << s << endl;