回答編集履歴
2
修正
test
CHANGED
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@@ -138,9 +138,7 @@
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138
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return true;
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-
else
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-
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-
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141
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return false;
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142
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}
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1
ついき
test
CHANGED
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@@ -29,3 +29,141 @@
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29
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という感じでどうでしょうか。
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32
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+
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35
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---
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36
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37
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```csharp
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38
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39
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using System;
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40
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41
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using System.Collections.Generic;
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42
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43
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using System.Linq;
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using System.IO;
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46
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47
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48
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49
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namespace ConsoleApp
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50
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{
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class Program
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{
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static void Main(string[] args)
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{
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60
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61
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var targetDir = new DirectoryInfo("./watching");
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62
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63
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var fileT0 = targetDir.EnumerateFiles().Select(x=> new SampleClass() {Name = x.FullName, ModifiedAt = x.LastAccessTime }).ToArray();
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64
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65
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var fileT1 = targetDir.EnumerateFiles().Select(x => new SampleClass() { Name = x.FullName, ModifiedAt = x.LastAccessTime }).ToArray();
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66
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67
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var removed = fileT0.Except(fileT1).ToArray();
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68
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var added = fileT1.Except(fileT0).ToArray();
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70
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71
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var modified = fileT0.Intersect(fileT1).Except(fileT1,new SampleClassEqualityComparer()).ToArray();
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72
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73
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Console.ReadKey();
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74
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75
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}
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76
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77
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}
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78
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79
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class SampleClass : IEquatable<SampleClass>
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80
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81
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{
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82
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public string Name { get; set; } = string.Empty;
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84
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85
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public DateTime ModifiedAt { get; set; } = default(DateTime);
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86
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87
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88
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89
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public override bool Equals(object obj)
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90
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91
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{
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92
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93
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return Equals(obj as SampleClass);
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94
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95
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}
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96
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97
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98
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99
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public bool Equals(SampleClass other)
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100
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{
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return other != null &&
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Name == other.Name;
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106
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107
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}
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108
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109
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110
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111
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public override int GetHashCode()
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112
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113
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{
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114
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115
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return 539060726 + EqualityComparer<string>.Default.GetHashCode(Name);
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116
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117
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}
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118
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119
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}
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120
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121
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class SampleClassEqualityComparer : IEqualityComparer<SampleClass>
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122
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123
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{
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124
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125
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public bool Equals(SampleClass s1, SampleClass s2)
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126
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127
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{
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128
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129
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if (s2 == null && s1 == null)
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130
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131
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return true;
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132
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133
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if (s1 == null || s2 == null)
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134
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135
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return false;
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136
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137
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if (s1.Name == s2.Name && s1.ModifiedAt == s2.ModifiedAt)
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138
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139
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return true;
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140
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141
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else
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142
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143
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return false;
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144
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+
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145
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}
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146
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+
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147
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+
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148
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+
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149
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public int GetHashCode(SampleClass s)
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150
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+
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151
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{
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152
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+
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153
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var hashCode = -22583235;
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154
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+
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155
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hashCode = hashCode * -1521134295 + EqualityComparer<string>.Default.GetHashCode(s.Name);
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156
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+
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157
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+
hashCode = hashCode * -1521134295 + s.ModifiedAt.GetHashCode();
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158
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+
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159
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+
return hashCode;
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160
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+
|
|
161
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+
}
|
|
162
|
+
|
|
163
|
+
}
|
|
164
|
+
|
|
165
|
+
|
|
166
|
+
|
|
167
|
+
}
|
|
168
|
+
|
|
169
|
+
```
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