设int数据占用两个字节，float数据占用四个字节，double数据占用8个字节，且已知floa 在c语言中，整型变量int为什么占4个字节？float占4个...
12 \u8bbeint\u6570\u636e\u5360\u7528\u4e24\u4e2a\u5b57\u8282\uff0cfloat\u6570\u636e\u5360\u7528\u56db\u4e2a\u5b57\u8282\uff0cdouble\u6570\u636e\u5360\u75288\u4e2a\u5b57\u8282\uff0c\u4e14\u5df2\u77e5f\u9009A
int\u5360\u591a\u5c11\u4e2a\u5b57\u8282\u662f\u7531\u7f16\u8bd1\u5668\u51b3\u5b9a\u7684\uff0cANSI\u6807\u51c6\u5b9a\u4e49int\u662f\u53602\u4e2a\u5b57\u8282\uff0e
TC\u662f\u6309ANSI\u6807\u51c6\u7684\uff0c\u5b83\u7684int\u662f\u53602\u4e2a\u5b57\u8282\u7684\uff0e
\u4f60\u53ef\u4ee5\u5728TC\u91cc\u8bd5\uff0eprintf("%d",sizeof(int));\u7ed3\u679c\u662f2\uff1b
\u4f46\u662f\u5728VC\u91cc\uff0c\u4e00\u4e2aint\u662f\u53604\u4e2a\u5b57\u8282\u7684\uff0c\u5728VC\u91cc\u9762\uff0c
printf("%d",sizeof(int));
cout<<sizeof(int);\u7ed3\u679c\u90fd\u662f4\uff0e
\u4e0d\u540c\u7684\u7f16\u8bd1\u5668\uff0c\u89c4\u5b9a\u4e5f\u4e0d\u4e00\u6837\uff0e
float,double\u4e5f\u662f\u4e00\u6837\u7684\uff0c\u5728\u4e0d\u540c\u7684\u7f16\u8bd1\u5668\u91cc\uff0c\u5360\u7684\u5b57\u8282\u662f\u4e0d\u4e00\u6837\u7684\uff0e
绛旓細1.鏁村舰int, 2涓瓧鑺 2.瀹炲瀷flioat 4涓瓧鑺 3.double锛 8涓瓧鑺 4.long 4涓 5.short 1涓 6.char 1涓 7.long double 10涓 8.boor 1涓 鏋勯犵被鍨 9.鏁扮粍 10.缁撴瀯浣 11.鑱斿悎浣 12.鎸囬拡 13.typedef(鑷畾涔夌被鍨嬶級...
绛旓細1.lnitalizing default lnitalizing default 0 0.0 Desdtructor is active Desdtructor is active 2.class triangle锛歱ublic shape锝 private:float a,b,c;public:triangle():a(0),b(0),c(0){} float length(){ return a+b+c;} 锝;class rectangle锛歱ublic shape锝 private:float a,b...
绛旓細define COL 3 define ROW 3 int main(){ int array[ROW][COL]={1,2,3,4,5,6,7,8,9};int pos;for(int i = 0;i<ROW;i++){ for(int j = 0; j<COL;j++){ printf("%d\t",array[i][j]);} printf("\n");} printf("璇疯緭鍏ユ寚瀹氬垪锛");scanf("%d",&pos);if(pos<0...
绛旓細void main(){ char ch;short sh;int in;long lo;float fl;double Do;int Size;cout<<"sizeof(char) "<<sizeof(ch)<<endl;cout<<"sizeof(short) "<<sizeof(sh)<<endl;cout<<"sizeof(int) "<<sizeof(in)<<endl;cout<<"sizeof(long) "<<sizeof(lo)<<endl;cout<<"size...
绛旓細float鏄崟绮惧害鏁版嵁绫诲瀷
绛旓細妤间笂鐨勬槑鏄捐儭璇村叓閬擄紝姝ｇ‘绛旀鏄痑锛屽鏋滅洿鎺ョ敤绫诲悕A璁块棶灏卞繀椤绘妸fl鍚庨潰鍔犱笂鎷彿骞朵笖鎷彿閲岄潰浼犲叆涓涓int绫诲瀷鐨勫硷紝渚嬪A::fl(6)銆
绛旓細鍏跺疄test涔熷彲浠ョ湅浣滅敤鎴疯嚜瀹氫箟鐨鏁版嵁绫诲瀷锛屽拰int锛char..涓鏍 浠ｇ爜鍙互杩欐牱鐞嗚В锛歵est array[2]; //鏋勫缓浜2涓test绫荤殑瀵硅薄,涔熷氨鏄2涓璞＄粍鎴愮殑瀵硅薄鏁扮粍鐨勬瀯閫犲嚱鏁 test::test(){ cout<<"Initalizing default"<<endl;num=0;fl=0.0;} //2涓璞″垎鍒墽琛屼竴娆★紝骞跺湪灞忓箷涓婅緭鍑 //鐒跺悗...
绛旓細杩欎釜瑕佺湅浣犵紪璇戝櫒鐨勬儏鍐典簡锛佸鏋滄槸32浣岰鐨勮瘽锛int鏈4瀛楄妭锛宖loat鏈4瀛楄妭锛宑har鏈1瀛楄妭锛岄偅涔堝氨鏄8
绛旓細渚嬪 锛歴printf(desc, "%.3s", "123456"); desc濡傛灉绌洪棿>=4瀛楄妭鐨勮瘽锛岀4涓瓧鑺灏嗘槸null瀛楃銆傗懄f鏍煎紡锛氱敤鏉ヨ緭鍑哄疄鏁帮紙鍖呮嫭鍗曘佸弻绮惧害锛夛紝浠ュ皬鏁板舰寮忚緭鍑恒傛湁浠ヤ笅鍑犵鐢ㄦ硶锛歠锛氫笉鎸囧畾瀹藉害锛屾暣鏁伴儴鍒嗗叏閮ㄨ緭鍑哄苟杈撳嚭6浣嶅皬鏁般俶.nf锛氳緭鍑哄叡鍗m鍒楋紝鍏朵腑鏈塶浣嶅皬鏁帮紝濡鏁板瀹藉害灏忎簬m宸︾琛ョ┖鏍笺-...
绛旓細int main(){ ifstream infile("123.txt",ios::in);/*瑕佸湪瀛樻斁VC++MyProjects閲岄潰鐨勫綋鍓嶆枃浠跺缓绔嬩竴涓猼xt鏂囨湰 浣嶇疆涔熷彲浠ユ敼鎴愬叾瀹冨湴鏂*/ if(!infile){ cout<<"open error!"<<endl;exit(1);} ofstream outfile("fl.txt",ios::out);//瀛樻斁浣嶇疆鍙互鏀规垚鍏朵粬鍦版柟濡俢:fl.txt if(!outfile){ ...
