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请问用正则怎么匹配这个字符串呀

jusewebapp.oss-cn-hangzhou.aliyuncs.com

!江湖救急


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输入是什么,需要什么输出?感觉你没有把问题表达清楚,如果是固定匹配这个域名,那正则表达式就是它本身,额外需要考虑仅是不同语言下的转义。
如:

var pattern = /jusewebapp.oss-cn-hangzhou.aliyuncs.com/,
    str = 'a test string with domain jusewebapp.oss-cn-hangzhou.aliyuncs.com';
console.log(pattern.test(str));

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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