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September 21, 2018 09:12
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html Regex short cut string transform img to [img]
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/* | |
* 字符串截取 | |
* 第一个参数 : 字符串 | |
* 第二个参数 : 长度要求 | |
* */ | |
function strCut(strs, len) { | |
var str_length = 0; | |
if (strs != null) { | |
var str = strs.replace(/<img.+?>/ig, '[图片]'); | |
var str_len = str.length; | |
var text; | |
var cut = []; | |
str = str.replace(/(\n)/g, ""); | |
str = str.replace(/(\t)/g, ""); | |
str = str.replace(/(\r)/g, ""); | |
str = str.replace(/<\/?[^>]*>/g, ""); | |
str = str.replace(/\s*/g, ""); | |
str = str.replace(/<[^>]*>/g,""); | |
if (str_len < len) { | |
return str; | |
}; | |
for (var i = 0; i < str_len; i++) { | |
text = str.charAt(i); | |
cut = cut.concat(text); | |
str_length++; | |
if (str_length >= len) { | |
cut = cut.concat('...'); | |
return cut.join(''); | |
} | |
}; | |
} | |
}; |
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