Здравствуйте, StanislavB.
Кажется эквивалента нет -- используют "regular expressions".
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=ebRIgbxMCHA.1620%40tkmsftngp10&rnum=3&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dc%2523%2Bfscanf%26sa%3DN%26tab%3Dwg
C:
fscanf(fp,"%f,%f,%f,%f,%s",&in1,&in2,&in3,&in4,name);
C#:
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Regex reg = new Regex("(?n

?<first>.*),(?<second>.*)," + "(?<third>.*),(?<fourth>.*),(?<fifth>.*))");
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