package main
import (
"regexp"
"fmt"
)
func main() {
var re = regexp.MustCompile(`(?m)(无|否认)(既往)?[^,。，.]{2,6}过敏史`)
var str = `患者既往体质尚可，否认有“高血压、糖尿病、冠心病”等慢性病病史，否认 心、肝、脑、肺、肾“等重大脏器疾病史，否认”肝炎、肺结核等传染病史，否认其他重大手术及外伤史，否认输血及中毒史，呋喃唑酮过敏史，过敏表现：皮疹瘙痒、全身浮肿，否认食物药物过敏史`
for i, match := range re.FindAllString(str, -1) {
fmt.Println(match, "found at index", i)
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Golang, please visit: https://golang.org/pkg/regexp/