回答編集履歴
1
cb.current(0) 最初の要素を選択から cb.set('') 空白に変更
test
CHANGED
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@@ -92,9 +92,7 @@
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92
92
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93
93
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cb2['values'] = list(lang[cb1.get()].keys())
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94
94
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95
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-
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95
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+
cb2.set('')
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96
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-
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97
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-
cb2.current(0)
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98
96
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99
97
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100
98
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@@ -102,9 +100,7 @@
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102
100
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103
101
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cb3['values'] = lang[cb1.get()][cb2.get()]
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104
102
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105
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-
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103
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+
cb3.set('')
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106
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-
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107
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-
cb3.current(0)
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108
104
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109
105
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110
106
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