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)
			}
		})
	}
}

　　

 

 

 

 

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