c++闅忔満鍑芥暟濡備綍鍋氬埌绉嶅瓙鏇存柊
鍦–++涓紝鍙互浣跨敤std::srand()鍑芥暟璁剧疆闅忔満鏁扮敓鎴愬櫒鐨勭瀛愩€傞€氬父鎯呭喌涓嬶紝鍙互浣跨敤绯荤粺鏃堕棿浣滀负绉嶅瓙锛岃繖鏍锋瘡娆¤繍琛岀▼搴忔椂绉嶅瓙閮戒細涓嶅悓锛屼粠鑰屼娇寰楃敓鎴愮殑闅忔満鏁板簭鍒椾篃涓嶅悓銆?/p>
浠ヤ笅鏄竴涓ず渚嬩唬鐮侊紝婕旂ず濡備綍浣跨敤绯荤粺鏃堕棿浣滀负绉嶅瓙鏉ユ洿鏂伴殢鏈烘暟鐢熸垚鍣細
#include <iostream>
#include <cstdlib>
#include <ctime>
int main() {
// 浣跨敤绯荤粺鏃堕棿浣滀负绉嶅瓙
std::srand(static_cast<unsigned int>(std::time(nullptr)));
// 鐢熸垚闅忔満鏁?/span>
for (int i = 0; i < 10; ++i) {
std::cout << std::rand() << std::endl;
}
return 0;
}
鍦ㄤ笂闈㈢殑绀轰緥涓紝std::time(nullptr)鍑芥暟杩斿洖褰撳墠绯荤粺鏃堕棿鐨勭鏁帮紝鐒跺悗灏嗗叾杞崲涓?code>unsigned int绫诲瀷锛屽苟浣滀负鍙傛暟浼犻€掔粰std::srand()鍑芥暟锛屼粠鑰屾洿鏂颁簡闅忔満鏁扮敓鎴愬櫒鐨勭瀛愩€傛帴鐫€閫氳繃std::rand()鍑芥暟鐢熸垚浜?0涓殢鏈烘暟骞惰緭鍑哄埌鎺у埗鍙般€傜敱浜庢瘡娆¤繍琛岀▼搴忔椂绉嶅瓙閮戒細涓嶅悓锛屽洜姝ょ敓鎴愮殑闅忔満鏁板簭鍒椾篃浼氫笉鍚屻€?/p>
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