Question

请教一个问题，在VC中怎样把一个文本文件里的数据读入并存储到数组里？！

文本文件是MAPGIS的明码文件。
其中的数据如下：
1.733216,1.328583,1,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
15.597249,1.515934,2,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
30.210690,1.515934,3,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
45.948242,1.515934,4,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
62.997257,1.515934,5,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
78.734810,1.328583,6,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
78.547455,13.881153,7,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
62.997257,14.068505,8,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0
45.760891,14.068505,9,1,247,2.000000,2.000000,0.000000,0,6,0.050000,0,0

Answer 1

首先把文件中的所有字符读入一个字符串中（如果不大的话）
然后定义一个string变量str_a，当遇到“，”逗号时，将上一个逗号和这一个逗号之间的字符串赋值给a，然后把字符串str_a转换浮点数。然后存入数组。

追问

谢谢啊！ 假如每一行都是一个点的属性数据。 能不能把一行读入存入一个结构体变量， n行就存成结构体数组呢！？

追答

直接每行读到一个string变量就行了，然后转换浮点数，不需要存成结构体数组。

追问

谢谢，怎么转换成浮点型呢，逗号如何处理！