java瀛楃涓叉€庝箞娣诲姞瀛楃
扬州沐宇科技
2023-10-26 20:34:31
鍦↗ava涓紝鎴戜滑鍙互浣跨敤"+"鎿嶄綔绗︽垨鑰匰tringBuilder绫绘潵娣诲姞瀛楃鍒板瓧绗︿覆涓€?/p>
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浣跨敤"+鈥滄搷浣滅锛?鍙互閫氳繃鍦ㄥ瓧绗︿覆鍚庨潰浣跨敤鈥?"鎿嶄綔绗︼紝灏嗗瓧绗︽坊鍔犲埌瀛楃涓叉湯灏俱€?/p>
绀轰緥浠ｇ爜锛?/p>
String str = "Hello"; char ch = '!'; str = str + ch; System.out.println(str); // 杈撳嚭锛欻ello! -
浣跨敤StringBuilder绫伙細 StringBuilder绫绘槸涓€涓彲鍙樼殑瀛楃涓茬被锛屽畠鎻愪緵浜嗗绉嶆柟娉曟潵娣诲姞瀛楃鍒板瓧绗︿覆涓€?/p>
绀轰緥浠ｇ爜锛?/p>
StringBuilder sb = new StringBuilder("Hello"); char ch = '!'; sb.append(ch); System.out.println(sb.toString()); // 杈撳嚭锛欻ello!
鏃犺鏄娇鐢?quot;+"鎿嶄綔绗﹁繕鏄疭tringBuilder绫伙紝閮藉彲浠ュ疄鐜板湪瀛楃涓叉湯灏炬坊鍔犲瓧绗︾殑鍔熻兘銆傞€夋嫨浣跨敤鍝鏂规硶鍙栧喅浜庡叿浣撶殑闇€姹傚拰鍦烘櫙銆?/p>
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