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# 普通字符串
name := "lilei"
# 多行字符串
usage := `hello,
my name is lilei
i'm a boy.`
fmt.Println("name:", name)
fmt.Println("usage:", usage)
name := "lilei"
nameLen := len(name)
fmt.Println("name length:" nameLen)
for i := 0; i < len(name); i++ {
fmt.Printf("i: %d, v: %cn", i, name[i])
}
i, j := "hello", "world"
fmt.Println("i+j=", i+j)
const ADDRESS := "beijing"
fmt.Println("address:", ADDRESS)
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