Dark Horse programmer-C language basics: placeholder for output of various data types

• Short/int: % d

  A =, );

   

• Long: % ld; (long is an int modifier. It cannot be regarded as a separate data type, but it only has four bytes more storage space than int)
• Long: % lld
• Char: % c
• Float/double: % f float is a 6-digit decimal output by default. It can be controlled in % f. For example: %. 2f: two decimal places are output;
• Char * s (string): % s
• Unsigned: % u (signed: signed, unsigned: unsigned; all are signed by default)
• Octal: % o starts with 0
• Hexadecimal: % x starting with 0x

  A =, a); printf (, );

   

• The binary output does not have placeholders. You can only use other methods.
• Address value/pointer value: % p