如何编写正则表达式移除JSON中指定起始至结束的内容？

针对你的需求，这里提供对应的正则表达式及替换说明：

正则表达式 #

/"externalLinks":[\s\S]*?(?="maxPop")

表达式说明 #

• "externalLinks": 精准匹配起始标记文本
• [\s\S]*? 匹配任意字符（含换行），采用非贪婪模式，确保不会过度匹配到后续的"maxPop"
• (?="maxPop") 正向预查，让匹配停止在"maxPop"之前，保留该结束标记

替换示例 #

输入JSON片段 #

"oge": "GOF",
"original": {
  "report": true,
  "tier": "IA"
},
"pertinentNegative": false,
"populationFrequency": {
  "externalLinks": {
    "7-2-A-T": "https://x.d.org/s/7-d-A-T?dataset=s"
  },
  "maxPop": "South Asian",
  "maxPopAC": 1,
  "maxPopAN": 30,
  "maxPopFreq": 3.276,
  "overallPopAC": 1,
  "overallPopAN": 23,
  "overallPopFreq": 4.22,
  "source": "gnomAD"
}

替换操作 #

将匹配到的内容直接替换为空字符串即可。

输出结果 #

"oge": "GOF",
"original": {
  "report": true,
  "tier": "IA"
},
"pertinentNegative": false,
"populationFrequency": {
  "maxPop": "South Asian",
  "maxPopAC": 1,
  "maxPopAN": 30,
  "maxPopFreq": 3.276,
  "overallPopAC": 1,
  "overallPopAN": 23,
  "overallPopFreq": 4.22,
  "source": "gnomAD"
}

内容的提问来源于stack exchange，提问作者prilia