技术问答string鐨剅eplace鍑芥暟鎬庝箞浣跨敤 - 扬州沐宇科技

string鐨剅eplace鍑芥暟鍙互閫氳繃浠ヤ笅鏂瑰紡浣跨敤锛?/p>

string.replace(old, new, count)

鍏朵腑锛?code>old琛ㄧず瑕佽鏇挎崲鐨勫瓙瀛楃涓诧紝new琛ㄧず瑕佹浛鎹㈡垚鐨勬柊瀛楃涓诧紝count琛ㄧず瑕佹浛鎹㈢殑娆℃暟锛堝彲閫夊弬鏁帮紝榛樿涓哄叏閮ㄦ浛鎹級銆?/p>

绀轰緥锛?/p>

text = "Hello, World!"
new_text = text.replace("Hello", "Hi")
print(new_text)
# 杈撳嚭锛欻i, World!

鍦ㄤ笂闈㈢殑绀轰緥涓紝鍘熷瀛楃涓叉槸"Hello, World!鈥滐紝鎴戜滑浣跨敤replace鍑芥暟灏?quot;Hello"鏇挎崲涓?quot;Hi鈥濓紝寰楀埌鏂扮殑瀛楃涓?quot;Hi, World!"銆?/p>

鍙︿竴涓ず渚嬶細

text = "Hello, Hello, Hello"
new_text = text.replace("Hello", "Hi", 2)
print(new_text)
# 杈撳嚭锛欻i, Hi, Hello

鍦ㄨ繖涓ず渚嬩腑锛屽師濮嬪瓧绗︿覆鏄?quot;Hello, Hello, Hello"锛屾垜浠娇鐢?code>replace鍑芥暟灏嗗墠涓や釜"Hello"鏇挎崲涓?quot;Hi"锛屽緱鍒版柊鐨勫瓧绗︿覆"Hi, Hi, Hello"銆傛敞鎰忥紝鎸囧畾浜?code>count鍙傛暟涓?锛屾墍浠ュ彧鏈夊墠涓や釜"Hello"琚浛鎹簡銆?/p>

甯屾湜杩欏彲浠ュ府鍔╁埌浣狅紒