在循环中使用和序列来计算值

我需要有关编写的用于使用化学计量计算密度的代码的帮助。每次执行时，它将创建一个唯一的文本文件，并在每个唯一的文本文件中写入对应于密度的化学计量。因此，一旦第一次执行，“ stoich”将变为2，然后变为4，依此类推。它写入的每个文本文件将具有计算出的密度的不同“ stoich”值。

den_U = 19.1 #density of uranium 238 g/cc
den_C = 2.26 #density of carbon 12 g/cc
molm_U = 238.02 #molar mass of Uranium g/mol
molm_C = 12.0107 #molar mass of Carbon g/mol
stoich = [1,2,4,10,100,200,500,1000,2500,3000,4000]
for i in stoich:
input = 'density_stoichiometry_'+str(d)+'_'
file = open(input + '.txt','w')
T_C = molm_C*stoich # calculates total mass of carbon
T_com = T_C + molm_U # calculates total mass of chemical compound
per_C = T_C/T_com # calculates percent of carbon in compound
per_U = molm_U/T_com #calculates the percent of uranium in compound
den_com = den_U*per_U + den_C*per_C # calculates the total density
d = stoich
file.write('density='+str(den_com)+ '\n')
file.write('stoichiometry=' +str(d)+ '\n')
file.close()
stoich = 1


代码给了我'T_C = molm_C * stoich'的错误，说我不能将序列乘以'float'类型的非整数。我假设我在“ d = stoich”时也会遇到同样的问题。如果有人可以提供帮助，我将不胜感激。

以下作品：

den_U = 19.1 #density of uranium 238 g/cc
den_C = 2.26 #density of carbon 12 g/cc
molm_U = 238.02 #molar mass of Uranium g/mol
molm_C = 12.0107 #molar mass of Carbon g/mol
stoich = [1,2,4,10,100,200,500,1000,2500,3000,4000]
for i in stoich:
fname = 'density_stoichiometry_'+str(i)+'_.txt'
file = open(fname,'w')
T_C = molm_C*i # calculates total mass of carbon
T_com = T_C + molm_U # calculates total mass of chemical compound
per_C = T_C/T_com # calculates percent of carbon in compound
per_U = molm_U/T_com #calculates the percent of uranium in compound
den_com = den_U*per_U + den_C*per_C # calculates the total density
file.write('density='+str(den_com)+ '\n')
file.write('stoichiometry=' +str(i)+ '\n')
file.close()


我在循环体中使用了i而不是stoich，摆脱了毫无意义的d，并替换了input（内置名称函数）与fname。我还将fname的定义合并到了一行，因为它降低了可读性，将其定义分为两行（其定义的一部分嵌入在函数调用中）。