修复歌词原文和译文交错排列时会出现不对应的问题

util_test.go

@@ -0,0 +1,80 @@
+package main
+
+import "testing"
+
+func TestMillisecond2Time(t *testing.T) {
+	type args struct {
+		millisecond int
+	}
+	tests := []struct {
+		name   string
+		args   args
+		wantH  int
+		wantM  int
+		wantS  int
+		wantMs int
+	}{
+		{"ms_0", args{0}, 0, 0, 0, 0},
+		{"ms_100", args{100}, 0, 0, 0, 100},
+		{"ms_1000", args{1000}, 0, 0, 1, 0},
+		{"ms_1100", args{1100}, 0, 0, 1, 100},
+		{"ms_60000", args{60000}, 0, 1, 0, 0},
+		{"ms_3600000", args{3600000}, 1, 0, 0, 0},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			gotH, gotM, gotS, gotMs := Millisecond2Time(tt.args.millisecond)
+			if gotH != tt.wantH {
+				t.Errorf("Millisecond2Time() gotH = %v, want %v", gotH, tt.wantH)
+			}
+			if gotM != tt.wantM {
+				t.Errorf("Millisecond2Time() gotM = %v, want %v", gotM, tt.wantM)
+			}
+			if gotS != tt.wantS {
+				t.Errorf("Millisecond2Time() gotS = %v, want %v", gotS, tt.wantS)
+			}
+			if gotMs != tt.wantMs {
+				t.Errorf("Millisecond2Time() gotMs = %v, want %v", gotMs, tt.wantMs)
+			}
+		})
+	}
+}
+
+func TestTime2Millisecond(t *testing.T) {
+	type args struct {
+		m  int
+		s  int
+		ms int
+	}
+	tests := []struct {
+		name string
+		args args
+		want int
+	}{
+		{"0:0.0", args{0, 0, 0}, 0},
+		{"0:0.1", args{0, 0, 1}, 1},
+		{"0:0.999", args{0, 0, 999}, 999},
+		{"0:1.0", args{0, 1, 0}, 1000},
+		{"0:1.999", args{0, 1, 999}, 1999},
+		{"1:0.0", args{1, 0, 0}, 60000},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := Time2Millisecond(tt.args.m, tt.args.s, tt.args.ms); got != tt.want {
+				t.Errorf("Time2Millisecond() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func BenchmarkTime2Millisecond(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Time2Millisecond(999, 999, 999)
+	}
+}
+
+func BenchmarkMillisecond2Time(b *testing.B) {
+	for i := 0; i < b.N; i++ {
+		Millisecond2Time(9999999999)
+	}
+}