怎样判断一字符串中是否含有@(1分)

  • 主题发起人 yangpeng0622
  • 开始时间
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yangpeng0622

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怎样判断一字符串中是否含有@
 
pos functiom
 
Pos(Substr: string
S: string): Integer;
 
请写具体点
 
pos('@',s)=0 have '@'
<>0 not have '@'
s就是你要判断的字符串
 
接受答案了.
 
seaerwang在误导别人!!!楼主也不知道是不是真的明白。既然此帖已结,也不想多说。
看看帮助的描述:
Pos searches for Substr within S and returns an integer value that is the index of the first character of Substr within S. Pos is case-sensitive. If Substr is not found, Pos returns zero.
 
pos('@',s)=0 not have '@'
<>0 have '@'
s就是你要判断的字符串
 

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