python鎬庝箞鏌ユ壘鍒楄〃涓厓绱犵殑浣嶇疆
扬州沐宇科技
2023-09-25 09:46:19
鍙互浣跨敤鍒楄〃鐨刬ndex()鏂规硶鏉ユ煡鎵惧垪琛ㄤ腑鍏冪礌鐨勪綅缃€?/p>
绀轰緥浠ｇ爜濡備笅锛?/p>
# 瀹氫箟涓€涓垪琛?/span>
my_list = [10, 20, 30, 40, 50]
# 鏌ユ壘鍏冪礌30鐨勪綅缃?/span>
index = my_list.index(30)
print(index) # 杈撳嚭锛?
濡傛灉瑕佹煡鎵剧殑鍏冪礌涓嶅湪鍒楄〃涓紝index()鏂规硶浼氭姏鍑轰竴涓猇alueError寮傚父銆備负浜嗛伩鍏嶅紓甯哥殑鍙戠敓锛屽彲浠ヤ娇鐢╥n鍏抽敭瀛楀厛杩涜鍒ゆ柇銆?/p>
绀轰緥浠ｇ爜濡備笅锛?/p>
# 瀹氫箟涓€涓垪琛?/span>
my_list = [10, 20, 30, 40, 50]
# 鍏堝垽鏂厓绱犳槸鍚﹀湪鍒楄〃涓?/span>
if 30 in my_list:
index = my_list.index(30)
print(index) # 杈撳嚭锛?
else:
print("鍏冪礌涓嶅湪鍒楄〃涓?quot;)
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