技术问答python涓璱snumeric鎬庝箞浣跨敤 - 扬州沐宇科技

鍦≒ython涓紝isnumeric()鏄竴涓瓧绗︿覆鏂规硶锛岀敤浜庢鏌ュ瓧绗︿覆鏄惁鍙寘鍚暟瀛楀瓧绗︺€傚畠杩斿洖涓€涓竷灏斿€硷紝濡傛灉瀛楃涓插彧鍖呭惈鏁板瓧瀛楃锛屽垯涓篢rue锛屽惁鍒欎负False銆?/p>

浠ヤ笅鏄娇鐢?code>isnumeric()鏂规硶鐨勭ず渚嬶細

# 绀轰緥1: 鍙寘鍚暟瀛楀瓧绗?/span>
str1 = "12345"
print(str1.isnumeric())  # 杈撳嚭: True

# 绀轰緥2: 鍖呭惈鏁板瓧鍜屽叾浠栧瓧绗?/span>
str2 = "12.34"
print(str2.isnumeric())  # 杈撳嚭: False

# 绀轰緥3: 鍖呭惈鏁板瓧鍜岀┖鏍?/span>
str3 = " 123 "
print(str3.isnumeric())  # 杈撳嚭: False

# 绀轰緥4: 绌哄瓧绗︿覆
str4 = ""
print(str4.isnumeric())  # 杈撳嚭: False

璇锋敞鎰忥紝isnumeric()鏂规硶鍙兘鐢ㄤ簬Unicode瀛楃涓诧紝瀵逛簬瀛楄妭瀛楃涓诧紙bytes锛夋垨鑰呭叾浠栭潪瀛楃涓茬被鍨嬶紝闇€瑕佸厛杩涜绫诲瀷杞崲涓哄瓧绗︿覆銆?/p>