Question

我有一个包含以下内容的字符串：2.53，并且我试图将此数字转换为decimal类型，所以我这样做了：

string value = "2.53";
decimal converted = Convert.ToDecimal(value);

但最终结果是：253

Answer 1

每种文化的小数点都不同。在您的文化中，这可能是逗号。您可以使用### word.i ### %module word %{ #include "word.h" %} %include "std_string.i" %include "std_vector.i" namespace std { %template(vectord) vector<double>; } %include "word.h"作为swig -c++ -python word.i g++ -c -fpic word.cpp word_wrap.cxx -I/usr/include/python2.7 g++ -shared word.o word_wrap.o -o _word.so -lstdc++作为十进制分隔符：

In [1]: import word

In [2]: w = word.Word('test', 10, [10.2])
---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-2-ee2e5c406fd9> in <module>()
----> 1 w = word.Word('test', 10, [10.2])

/home/anarayan/workspace/swig-learn/word.pyc in __init__(self, word, numWords, values)
    276 
    277     def __init__(self, word, numWords, values):
--> 278         this = _word.new_Word(word, numWords, values)
    279         try:
    280             self.this.append(this)

TypeError: in method 'new_Word', argument 3 of type 'std::vector< double,std::allocator< double > > &'

转换中丢失的小数点

1 个答案: