如何将整个文件读入字符串变量

Question

I have lots of small files, I don't want to read them line by line.

Is there a function in Go that will read a whole file into a string variable?

转载于:https://stackoverflow.com/questions/13514184/how-can-i-read-a-whole-file-into-a-string-variable

Answer 1

Use ioutil.ReadFile:

func ReadFile(filename string) ([]byte, error)

ReadFile reads the file named by filename and returns the contents. A successful call returns err == nil, not err == EOF. Because ReadFile reads the whole file, it does not treat an EOF from Read as an error to be reported.

You will get a []byte instead of a string. It can be converted if really necessary:

s := string(buf)