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请教下这个百分号是啥意思啊 看不懂

WBOY
WBOYOriginal
2016-06-13 12:11:001052browse

请问下这个百分号是啥意思啊 看不懂

------解决思路----------------------
这是 转换字符   PHP的sprintf是对c中sprintf的封装
 
用于表示格式化字符串的时候   如何格式化对待对应位置的参数 

%d - 把对应位的参数转换当成带符号十进制数  然后替换%d 
%s - 把对应位的参数转换字符串 然后替换%s

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