C++实现逐行读取TXT文件的内容，并将指定的内容输出来

[{"title":"（29个子文件2.29MB）C++实现逐行读取TXT文件的内容，并将指定的内容输出来","children":[{"title":"ReadTest","children":[{"title":"ReadTest","children":[{"title":"Read.cpp <span style='color:#111;'>1.37KB</span>","children":null,"spread":false},{"title":"ReadTest.vcxproj.user <span style='color:#111;'>165B</span>","children":null,"spread":false},{"title":"ReadTest.vcxproj <span style='color:#111;'>4.01KB</span>","children":null,"spread":false},{"title":"ReadTest.vcxproj.filters <span style='color:#111;'>945B</span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"vc120.pdb <span style='color:#111;'>364.00KB</span>","children":null,"spread":false},{"title":"Read.obj <span style='color:#111;'>325.85KB</span>","children":null,"spread":false},{"title":"ReadTest.tlog","children":[{"title":"CL.write.1.tlog <span style='color:#111;'>332B</span>","children":null,"spread":false},{"title":"CL.read.1.tlog <span style='color:#111;'>12.43KB</span>","children":null,"spread":false},{"title":"cl.command.1.tlog <span style='color:#111;'>602B</span>","children":null,"spread":false},{"title":"link.write.1.tlog <span style='color:#111;'>310B</span>","children":null,"spread":false},{"title":"ReadTest.lastbuildstate <span style='color:#111;'>154B</span>","children":null,"spread":false},{"title":"link.command.1.tlog <span style='color:#111;'>1002B</span>","children":null,"spread":false},{"title":"link.read.1.tlog <span style='color:#111;'>2.43KB</span>","children":null,"spread":false}],"spread":true},{"title":"vc120.idb <span style='color:#111;'>267.00KB</span>","children":null,"spread":false},{"title":"ReadTest.log <span style='color:#111;'>1.31KB</span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"ReadTest.sdf <span style='color:#111;'>7.63MB</span>","children":null,"spread":false},{"title":"ReadTest.v12.suo <span style='color:#111;'>19.00KB</span>","children":null,"spread":false},{"title":"c154_x64","children":[{"title":"include","children":[{"title":"C154Plus.h <span style='color:#111;'>2.19KB</span>","children":null,"spread":false}],"spread":true},{"title":"lib","children":[{"title":"C154Plus.lib <span style='color:#111;'>3.51KB</span>","children":null,"spread":false},{"title":"C154Plus.ilk <span style='color:#111;'>622.11KB</span>","children":null,"spread":false},{"title":"C154Plus.pdb <span style='color:#111;'>1.29MB</span>","children":null,"spread":false},{"title":"C154Plus.dll <span style='color:#111;'>114.00KB</span>","children":null,"spread":false},{"title":"C154.txt <span style='color:#111;'>57B</span>","children":null,"spread":false},{"title":"C154Plus.exp <span style='color:#111;'>1.72KB</span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"ReadTest.sln <span style='color:#111;'>970B</span>","children":null,"spread":false},{"title":"Debug","children":[{"title":"ReadTest.pdb <span style='color:#111;'>1.11MB</span>","children":null,"spread":false},{"title":"ReadTest.ilk <span style='color:#111;'>789.98KB</span>","children":null,"spread":false},{"title":"C154.txt <span style='color:#111;'>57B</span>","children":null,"spread":false},{"title":"ReadTest.exe <span style='color:#111;'>108.00KB</span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]