trim 除掉一个字串中的字头或字尾 不可打印字符 二重循环
二重循环
func trimNonPrintingCharacters(s string) string {
l := []string{"\t", "\n", "\r", " "}
for _, v := range l {
s = strings.Trim(s, v)
for _, u := range l {
s = strings.Trim(s, u)
}
}
return s
}
func Test_trimNonPrintingCharacters(t *testing.T) {
type args struct {
s string
}
s1 := `
name string
args args`
s1_ := ` name string
args args`
tests := []struct {
name string
args args
want string
}{
// TODO: Add test cases.
{name: "1", args: args{s: s1}, want: s1_},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := trimNonPrintingCharacters(tt.args.s); got != tt.want {
t.Errorf("trimNonPrintingCharacters() = %v, want %v", got, tt.want)
}
})
}
}
