#include <stdio.h>
int main()
{char ip[32] = "192.168.1.151";  	//IP值char scIPAddress[32] = "";			//存储字符串IPunsigned int nIPAddress = 0;		//存储整形IPint nTmpIP[4] = {0};				//分割IPint i=0;//字符串转整形sscanf(ip,"%d.%d.%d.%d",&nTmpIP[0],&nTmpIP[1],&nTmpIP[2],&nTmpIP[3]);for(i=0;i<4;i++){nIPAddress += (nTmpIP[i]<<(24-(i*8))  & 0xFFFFFFFF);}//输出printf("整形IP：%u\r\n",nIPAddress);//整形转字符串sprintf(scIPAddress,"%d.%d.%d.%d", nIPAddress>> 24, (nIPAddress & 0xFF0000) >> 16, (nIPAddress & 0xFF00) >> 8, nIPAddress & 0xFF);//输出printf("字符串IP：%s\r\n",scIPAddress);return 0;
}

效果图：