Golang capturing panic stack information in an elegant posture

This is a created article in which the information may have evolved or changed.

// PanicTrace trace panic stack info.func PanicTrace(kb int) []byte {    s := []byte("/src/runtime/panic.go")    e := []byte("\ngoroutine ")    line := []byte("\n")    stack := make([]byte, kb<<10) //4KB    length := runtime.Stack(stack, true)    start := bytes.Index(stack, s)    stack = stack[start:length]    start = bytes.Index(stack, line) + 1    stack = stack[start:]    end := bytes.LastIndex(stack, line)    if end != -1 {        stack = stack[:end]    }    end = bytes.Index(stack, e)    if end != -1 {        stack = stack[:end]    }    stack = bytes.TrimRight(stack, "\n")    return stack}

Advantages of this function:

1. More detailed than the panic information captured by direct recover ()
2. is more accurate than letting its panic print stack information, the first line is the line of code that occurs panic
3. More concise than the stack information that allows it to be panic printed, you can specify information in kilobytes (KB)