技术问答java鐨刢ontains鏂规硶濡備綍浣跨敤 - 扬州沐宇科技

Java涓殑contains()鏂规硶鍙互鐢ㄤ簬妫€娴嬫煇涓瓧绗︿覆鏄惁鍖呭惈鎸囧畾鐨勫瓧绗﹀簭鍒椼€傚畠鐨勪娇鐢ㄦ柟寮忓涓嬶細

浣跨敤contains()鏂规硶鐨勯€氱敤鏍煎紡濡備笅锛?/p>
```
boolean result = 瀛楃涓?contains(寰呮鏌ョ殑瀛楃搴忓垪);
```
鍏朵腑锛屽瓧绗︿覆鏄妫€鏌ョ殑瀛楃涓诧紝寰呮鏌ョ殑瀛楃搴忓垪鏄鎼滅储鐨勫瓧绗﹀簭鍒椼€俢ontains()鏂规硶灏嗚繑鍥炰竴涓猙oolean鍊硷紝濡傛灉瀛楃涓插寘鍚緟妫€鏌ョ殑瀛楃搴忓垪锛屽垯杩斿洖true锛涘惁鍒欒繑鍥瀎alse銆?/p>

渚嬪瓙锛?/p>

String str = "Hello World";
boolean contains = str.contains("Hello");
System.out.println(contains);  // 杈撳嚭缁撴灉涓簍rue

boolean contains2 = str.contains("Java");
System.out.println(contains2);  // 杈撳嚭缁撴灉涓篺alse

鍦ㄤ娇鐢╟ontains()鏂规硶鏃讹紝鍙互鏍规嵁闇€瑕佷娇鐢ㄥ彉閲忔垨鐩存帴浣跨敤瀛楃涓插父閲忎綔涓哄緟妫€鏌ョ殑瀛楃搴忓垪鍙傛暟銆?/p>