在uniapp 小程序 vue中报错 Cannot read property ‘substring‘ of undefined - Code World

在uniapp 小程序 vue中报错 Cannot read property ‘substring‘ of undefined

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在uniapp 小程序 vue中报错 Cannot read property ‘substring‘ of undefined

在uniapp 小程序 vue中报错 Cannot read property ‘substring‘ of undefined

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