\u8bfe\u672c\uff1a\u6570\u636e\u7ed3\u6784 C\u548cC++\u63cf\u8ff0 \uff08\u7b2c\u4e8c\u7248\uff09<\/p>\n
\u7b2c\u4e00\u7ae0 \u6570\u636e\u7ed3\u6784\u5165\u95e8<\/p>\n
\u4e8c\u8fdb\u5236<\/p>\n
\u6bcf\u4e2a\u6bd4\u7279\u4f4d\u7f6e\u8868\u793a2\u7684\u4e00\u4e2a\u5e42\uff0c\u4ece\u53f3\u5411\u5de6\u4f9d\u6b21\u662f\uff1a1 2 4 8 16 32 64 128 | 256 512 1024\uff08\u6ce8\u610f\uff1a8\u4e2a\u6bd4\u7279\u53ef\u4ee5\u8868\u793a256\u4e2a\u4e0d\u540c\u7684\u5b57\u7b26\uff09<\/p>\n
\u4e8c\u8fdb\u5236\u6570\u8f6c\u6362\u4e3a\u5341\u8fdb\u5236\u53ea\u8981\u628a\u5bf9\u5e94\u6bd4\u7279\u4f4d\u4e0a2\u7684\u5e42\u76f8\u52a0\u5373\u53ef\u3002<\/p>\n
\u6709\u4e24\u79cd\u5e38\u7528\u7684\u8868\u793a\u8d1f\u4e8c\u8fdb\u5236\u6570\u7684\u65b9\u6cd5\uff1a1\u7684\u8865\u7801\u8868\u793a\u6cd5\u2014\u2014\u4e00\u4e2a\u8d1f\u6570\u662f\u901a\u8fc7\u628a\u5176\u7edd\u5bf9\u503c\u7684\u6bcf\u4e00\u4e2a\u6bd4\u7279\u53d6\u53cd\u6765\u8868\u793a\u7684\uff1b2\u7684\u8865\u7801\u8868\u793a\u6cd5\u2014\u2014\u8d1f\u6570\u7528\u51761\u7684\u8865\u7801\u8868\u793a\u6cd5\u518d\u52a0\u4e0a1\u6765\u8868\u793a\u3002<\/p>\n
\u5b9e\u6570<\/p>\n
\u4e00\u4e2a\u5b9e\u6570\u752832\u6bd4\u7279\u7684\u4e32\u8868\u793a\uff0c\u5176\u4e2d24\u6bd4\u7279\u8868\u793a\u5c3e\u6570\uff0c\u540e\u9762\u76848\u6bd4\u7279\u8868\u793a\u6307\u6570\u3002<\/p>\n
387.53=38753e-2<\/p>\n
\u5b57\u7b26\u4e32<\/p>\n
8\u4e2a\u6bd4\u7279\u53ef\u4ee5\u8868\u793a256\u4e2a\u4e0d\u540c\u7684\u5b57\u7b26\u3002<\/p>\n
\u6307\u9488<\/p>\n
\u5982\u679cx\u58f0\u660e\u4e3a\u4e00\u4e2a\u6574\u6570\uff0c\u5219&x\u5f15\u7528\u4e86\u4fdd\u5b58x\u7684\u7a7a\u95f4\u7684\u4f4d\u7f6e\u3002&x\u79f0\u4e3a\u201c\u6307\u9488\u201d\u3002<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u58f0\u660e\u4e00\u4e2a\u53d8\u91cf\uff0c\u5176\u6570\u636e\u7c7b\u578b\u4e3a\u6307\u9488\uff0c\u800c\u5176\u503c\u4e3a\u5185\u5b58\u4f4d\u7f6e\u3002\u4f8b\u5982\uff0c\u58f0\u660e<\/p>\n
int *pi;<\/p>\n
float *pf;<\/p>\n
char *pc;<\/p>\n
\u58f0\u660e\u4e86\u4e09\u4e2a\u6307\u9488\u53d8\u91cf\uff1api\u4e3a\u4e00\u4e2a\u6307\u5411\u6574\u6570\u7684\u6307\u9488\uff0cpf\u4e3a\u4e00\u4e2a\u6307\u5411\u6d6e\u70b9\u6570\u7684\u6307\u9488\uff0c\u800cpc\u4e3a\u4e00\u4e2a\u6307\u5411\u5b57\u7b26\u7684\u6307\u9488\u3002<\/p>\n
\u661f\u53f7\u8868\u793a\u6240\u58f0\u660e\u7684\u53d8\u91cf\u7684\u503c\u662f\u4e00\u4e2a\u6307\u9488\uff0c\u6307\u5411\u5728\u58f0\u660e\u4e2d\u6307\u5b9a\u7684\u7c7b\u578b\u7684\u503c\uff0c\u800c\u4e0d\u662f\u6307\u5411\u6b64\u7c7b\u578b\u7684\u5bf9\u8c61\u3002<\/p>\n
\u8bed\u53e5pi=&x\uff1b\u5c06\u6307\u5411\u6574\u6570\u7684x\u7684\u6307\u9488\u8d4b\u7ed9\u6307\u9488\u53d8\u91cfpi\u3002<\/p>\n
\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u53ef\u4ee5\u5c06pf\u7684\u7c7b\u578b\u7531\u201c\u6307\u5411\u6d6e\u70b9\u6570\u7684\u6307\u9488\u201d\u8f6c\u6362\u4e3a\u201c\u6307\u5411\u6307\u9488\u7684\u6307\u9488\u201d\uff1a<\/p>\n
pi=(int *)pf;<\/p>\n
\u6570\u7ec4<\/p>\n
\u7ed3\u6784<\/p>\n
\u7c7b
\n\u91cd\u8f7d \u7ee7\u627f \u6784\u9020\u51fd\u6570<\/p>\n","protected":false},"excerpt":{"rendered":"
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