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  1. ...string, int start [, int length] ) 這是substr的 用法 substr("要拆解的字串",要從...negative, the returned string will start at the start th character from the end of string...the string returned will contain at most length characters beginning...

  2. ... know is what matters most . Just died, died..., hiding. I look at you and I, I, just ...扣點並被記錄 。  若您尚未熟悉知識的 用法 ,請參考:發問者、回答者、投票者...