< FormattedMessage
id= "intl.hello"
defaultMessage= {"default Chinese"} / /-> this default language is displayed if there is a problem with multilingual json files
/ >
let tmp = intl.formatMessage ({id: "intl.name"}, {name:" joe"});
/ / the first parameter is the unique id in the multilingual json file, and the second parameter is the dynamic value. How to set the default value?
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