Convert the encoding format in Linux

Convert formats in Linux

// Create a CD handle first
Iconv_t CD;
// Then initialize
Cd = iconv_open ("UTF-8", "Unicode"); // The first parameter is the converted encoding, and the second parameter is the encoding to be converted, which here is converted from Unicode to UTF-8

// Convert
Iconv (Cd, pin, (size_t *) & inlen, pout, (size_t *) & outlen );
// CD, input code string, size, output code string, size
// If return is used,-1 indicates that the conversion fails, and non-1 indicates that the conversion is successful.

// Close at last
Iconv_close (CD );

This completes the encoding conversion.