执行此代码按钮后，标题有时会消失，但并非总是如此。什么可以解决这个问题？
Serial_Number Gateway_Uptime Defrost_Cycles Freeze_Cycles Float_Switch_Raw_ADC Bin_status Line_Voltage ADC_Evaporator_Temperature Mem_Sw Freeze_Timer Defrost_Timer Water_Flow_Switch ADC_Mid_Temperature ADC_Water_Temperature Ambient_Temperature Mid_Temperature Water_Temperature Evaporator_Temperature Ambient_Temperature_Off_Board Ambient_Temperature_On_Board ADC_Ambient_Temperature Control_State Compressor_Runtime temp_sensor temp_pcb gw_uptime winc_fw gw_fw_version gw_fw_version_git gw_sn heap_free gw_sig_csq gw_sig_quality wifi_sig_strength wifi_resets LastModifiedDateUTC Defrost_Cycle_time Freeze_Cycle_time
12345 251402 540 494 106 0 98 158 113 221 184 0 0 0 1259 1259 1259 33 0 0 0 Freeze 10833 0 78 251402 19.5.4 0.0.0 2a75f20-dirty 328.00000000 10976 0 0 -61 0 2018-03-20 11:15:28.000 0 0
12345 251702 540 494 106 0 98 178 113 517 184 0 0 0 1259 1259 1259 22 0 0 0 Freeze 10838 0 78 251702 19.5.4 0.0.0 2a75f20-dirty 328.00000000 10976 0 0 -62 0 2018-03-20 11:15:42.000 0 0
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答案 0 :(得分：0)
NSButton有一个＆＃39; On＆＃39;州和“关”＆＃39; state，.attributeTitle是指＆＃39; Off＆＃39;中的标题。 state和.attributeAlternateTitle是＆＃39; On＆＃39;中的标题。状态，所以你必须设置两者。