C语言关键字const

C语言关键字const

Part 1 变量定义部分

constint value01 = 100;

// error information: assignment of read-only variable 'value01'

// value01 = 111;

intconst value02 = 200;

// error information: assignment of read-only variable 'value02'

// value02 = 222;

int value03 = 300;

int value04 = 400;

constint *pointer01 = &value03;

// error information: assignment of read-only location

// *pointer01 = 111;

pointer01 = &value04;

intconst *pointer02 = &value03;

// error information: assignment of read-only location

// *pointer02 = 222;

pointer02 = &value04;

int*const pointer03 = &value03;

*pointer03 = 333;

// error information: assignment of read-only variable 'pointer03'

// pointer03 = &value04;

constint*const pointer04 = &value03;

// error information: assignment of read-only location

// *pointer04 = 444;

// error information: assignment of read-only variable 'pointer04'

// pointer04 = &value04;