Question

Python如何正则提取第三层花括号()里的内容？

举例：我想把如下字符串中第三层花括号的内容提取出来
{
supportedBandCombination-r10
{
{
{
bandEUTRA-r10 3,
bandParametersUL-r10
{
{
ca-BandwidthClassUL-r10 a
}
},
bandParametersDL-r10
{
{
ca-BandwidthClassDL-r10 a,
supportedMIMO-CapabilityDL-r10 twoLayers
}
}
}
},
{
{
bandEUTRA-r10 1,
bandParametersUL-r10
{
{
ca-BandwidthClassUL-r10 a
}
},
bandParametersDL-r10
{
{
ca-BandwidthClassDL-r10 a,
supportedMIMO-CapabilityDL-r10 twoLayers
}
}
}
},
{
{
bandEUTRA-r10 40,
bandParametersUL-r10
{
{
ca-BandwidthClassUL-r10 a
}
},
bandParametersDL-r10
{
{
ca-BandwidthClassDL-r10 a,
supportedMIMO-CapabilityDL-r10 twoLayers
}
}
}
},
{
{
bandEUTRA-r10 41,
bandParametersUL-r10
{
{
ca-BandwidthClassUL-r10 a
}
},
bandParametersDL-r10
{
{
ca-BandwidthClassDL-r10 a,
supportedMIMO-CapabilityDL-r10 twoLayers
}
}
}
},
}
}
}
Python如何正则提取第三层花括号里的内容？

Answer 1

rex = r'[^abcde]*'re.match(rex, 'this is a string')返回值是None则不匹配，反之匹配 当然先compile一下也很好。