read()方法读取文件size个字节大小。如果读取命中获得EOF大小字节之前,那么它只能读取可用的字节。
语法
以下是read()方法的语法:
fileObject.read( size );
参数
返回值
此方法返回读取字符串中的字节数。
例子
下面的例子显示了read()方法的使用。
#!/usr/bin/python# Open a filefo = open("foo.txt", "rw+")print "Name of the file: ", fo.name# Assuming file has following 5 lines# This is 1st line# This is 2nd line# This is 3rd line# This is 4th line# This is 5th lineline = fo.read(10)print "Read Line: %s" % (line)# Close opend filefo.close()
当我们运行上面的程序,它会产生以下结果:
Name of the file: foo.txtRead Line: This is 1s
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