This article analyzes the use of append function in Go language. Share to everyone for your reference. Specifically as follows:
The append in the go language is powerful and can be used to make many features more concise. The following is a simple comparison:
Inserts a slice into another slice at the specified location:
Do not use append:
Copy Code code as follows:
Func Insertsliceatindex (Slice_origin []int, Slice_to_insert []int,
Insertindex int) (result []int, err Error) {
If Insertindex > Len (slice_origin) {
return nil, errors. New ("Insertindex cannot be greater than slice_origin length")
}
result = Make ([]int, Len (slice_origin) +len (Slice_to_insert))
For I: = 0; I < Len (result); i++ {
If I < Insertindex {//insertion point
Result[i] = Slice_origin[i]
else If I < Insertindex+len (Slice_to_insert) {//insert Content
Result[i] = Slice_to_insert[i-insertindex]
} else {
Result[i] = Slice_origin[i-len (Slice_to_insert)]
}
}
Return
}
When you use append, the code is very concise:
Copy Code code as follows:
D: = []string{"Welcome", "for", "Tianjin", "Have", "a", "good", "Journey"}
Insertslice: = []string{' It ', ' is ', ' a ', ' big ', ' City '}
Insertsliceindex: = 3
D = Append (D[:insertsliceindex],
Append (Insertslice, D[insertsliceindex:] ...) ...)
Fmt. Printf ("result:%v\n", D)
I hope this article will help you with your go language program.
