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js截取指定字符前面或后面的内容

kmoon_b426 2023-03-24 阅读 92

getCaption(obj, state,strname) {
            var index = obj.lastIndexOf(strname);
            if (state == 0) {
                obj = obj.substring(0, index);
            } else {
                obj = obj.substring(index + 1, obj.length);
            }
            return obj;
        }

//调用

getCaption('abcefefef/9jccdmcdcmdm',1,"/9j")    //9jccdmcdcmdm



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