我有以下for循环写入来汇总列表中的所有数字。我知道python中有一个302 40 C:\Program Files\Dev-Cpp\MinGW64\include\graphics.h [Error] redefinition of 'int right'
2 0 C:\Users\user\Documents\solar.cpp In file included from C:\Users\user\Documents\solar.cpp
302 27 C:\Program Files\Dev-Cpp\MinGW64\include\graphics.h [Note] 'int right' previously declared here
28 23 C:\Users\user\Documents\solar.cpp [Error] expected ')' before ',' token
38 16 C:\Users\user\Documents\solar.cpp [Error] expected constructor, destructor, or type conversion before '(' token
C:\Users\user\Documents\solar.cpp In member function 'void Planet::Show()':
61 21 C:\Users\user\Documents\solar.cpp [Error] 'random' was not declared in this scope
66 12 C:\Users\user\Documents\solar.cpp [Error] 'newchar' was not declared in this scope
C:\Users\user\Documents\solar.cpp In member function 'void Planet::Move()':
88 12 C:\Users\user\Documents\solar.cpp [Error] 'newchar' was not declared in this scope
C:\Users\user\Documents\solar.cpp At global scope:
117 13 C:\Users\user\Documents\solar.cpp [Error] '::main' must return 'int'
C:\Users\user\Documents\solar.cpp In function 'int main()':
123 38 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
130 17 C:\Users\user\Documents\solar.cpp [Error] 'BW80' was not declared in this scope
130 21 C:\Users\user\Documents\solar.cpp [Error] 'textmode' was not declared in this scope
131 16 C:\Users\user\Documents\solar.cpp [Error] 'clrscr' was not declared in this scope
133 8 C:\Users\user\Documents\solar.cpp [Error] 'cout' was not declared in this scope
133 8 C:\Users\user\Documents\solar.cpp [Note] suggested alternative:
1 0 C:\Users\user\Documents\solar.cpp In file included from C:\Users\user\Documents\solar.cpp
61 18 C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\iostream [Note] 'std::cout'
133 67 C:\Users\user\Documents\solar.cpp [Error] 'endl' was not declared in this scope
133 67 C:\Users\user\Documents\solar.cpp [Note] suggested alternative:
39 0 C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\iostream In file included from C:/Program Files/Dev-Cpp/MinGW64/lib/gcc/x86_64-w64-mingw32/4.9.2/include/c++/iostream
1 C:\Users\user\Documents\solar.cpp from C:\Users\user\Documents\solar.cpp
564 5 C:\Program Files\Dev-Cpp\MinGW64\lib\gcc\x86_64-w64-mingw32\4.9.2\include\c++\ostream [Note] 'std::endl'
149 27 C:\Users\user\Documents\solar.cpp [Error] 'random' was not declared in this scope
153 28 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
154 28 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
155 28 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
158 29 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
159 29 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
160 29 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
163 33 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
164 33 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
165 33 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
169 48 C:\Users\user\Documents\solar.cpp [Warning] deprecated conversion from string constant to 'char*' [-Wwrite-strings]
181 34 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
181 34 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
182 32 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
182 32 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
183 33 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
183 33 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
184 33 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
184 33 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
185 36 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
185 36 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
186 35 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
186 35 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
187 35 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
187 35 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
188 36 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
188 36 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
189 34 C:\Users\user\Documents\solar.cpp [Error] no matching function for call to 'Planet::Planet(int, int, int, double)'
189 34 C:\Users\user\Documents\solar.cpp [Note] candidates are:
26 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet()
26 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 0 arguments, 4 provided
10 8 C:\Users\user\Documents\solar.cpp [Note] Planet::Planet(const Planet&)
10 8 C:\Users\user\Documents\solar.cpp [Note] candidate expects 1 argument, 4 provided
函数。
sum当我尝试在for循环中初始化tot = 0
var = 5
for num in range(1, var + 1):
tot += num
print tot
时，它给出了错误的答案：即
tot有什么理由吗？请注意，我是python的初学者。
答案 0 :(得分：1)
在循环中，您将tot的值重新分配给零。因此，tot在最后一次迭代中只是var。