Mozilla Thunderbird是一款开源的电子邮件客户端软件,用于接收、发送和管理电子邮件。setHeader(hdr,val)是Thunderbird提供的一个函数,用于设置邮件头部的字段和对应的值。
在使用setHeader(hdr,val)函数时,hdr表示要设置的邮件头字段,val表示该字段对应的值。该函数的作用是将指定的邮件头字段设置为给定的值。
例如,如果要将邮件的"Subject"字段设置为"Hello World",可以使用以下代码:
setHeader("Subject", "Hello World");
这样,邮件的主题就会被设置为"Hello World"。
在使用setHeader(hdr,val)函数时,需要注意以下几点:
- 多个空格的剥离:如果val参数中存在多个连续的空格,setHeader函数会自动将其剥离为单个空格。这是为了遵循电子邮件的规范,确保邮件头部的格式正确。
总结起来,Mozilla Thunderbird的setHeader(hdr,val)函数用于设置邮件头部字段的值,并且会自动剥离多个连续空格。这个函数可以帮助用户定制邮件的头部信息,以满足个性化的需求。
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