python如何在文本中删除指定的字符串 python如何删除字符串中指定位置的字符？
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str = 'hello world'
\u5982\u679c\u662f\u60f3\u53bb\u6389\u7b2c\u4e00\u4e2a\u5b57\u6bcd'o'\uff0c\u5e76\u4e14\u77e5\u9053\u662f\u7b2c5\u4e2a\u5b57\u7b26, index=4
1.\u4f7f\u7528\u5206\u7247 new_str = str[:4]+str[5:] ;
2.\u5faa\u73af\u8bfb\u53d6new_str = ''.join([str[i] for i in range(len(str)) if i!= 4]) ;
3.\u5b57\u7b26\u66ff\u6362new_str = str.replace('o','',1) #\u540e\u9762\u76841\u4ee3\u8868\u66ff\u6362\u7b2c\u4e00\u4e2a\u5339\u914d'o'\u7684\u5b57\u7b26 \u3002
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#!/bin/env pythonimport shutil, sys, osdarray = [ "Entering directory", "In function ", "Leaving directory", "__NR_SYSCALL_BASE", "arm-hisiv100-linux-ar ", "arm-hisiv100-linux-gcc ", "but argument is of type", "dereferencing type-punned pointer will break strict-aliasing rules", "differ in signedness", "does break strict-aliasing rules", "embedded '\\0' in format", "excess elements in array initializer", "implicit declaration of", "make -C ", " rm -f", "this is the location of the previous definition", "warning: multi-line comment"]def isInArray (array, line): for item in array: if item in line: return True return Falseif __name__ == '__main__': argv = sys.argv argc = len(argv) if argc " %(os.path.basename(argv[0])) exit() fname = argv[1] fresult = fname + ".result" with open(fname, 'r') as f: with open(fresult, 'w') as g: for line in f.readlines(): if not isInArray(darray, line): g.write(line)\u5173\u4e8ePython\u76f8\u5173\u5185\u5bb9\u611f\u5174\u8da3\u7684\u8bfb\u8005\u53ef\u67e5\u770b\u672c\u7ad9\u4e13\u9898\uff1a\u300aPython\u6587\u4ef6\u4e0e\u76ee\u5f55\u64cd\u4f5c\u6280\u5de7\u6c47\u603b\u300b\u3001\u300aPython\u6587\u672c\u6587\u4ef6\u64cd\u4f5c\u6280\u5de7\u6c47\u603b\u300b\u3001\u300aPython URL\u64cd\u4f5c\u6280\u5de7\u603b\u7ed3\u300b\u3001\u300aPython\u56fe\u7247\u64cd\u4f5c\u6280\u5de7\u603b\u7ed3\u300b\u3001\u300aPython\u6570\u636e\u7ed3\u6784\u4e0e\u7b97\u6cd5\u6559\u7a0b\u300b\u3001\u300aPython Socket\u7f16\u7a0b\u6280\u5de7\u603b\u7ed3\u300b\u3001\u300aPython\u51fd\u6570\u4f7f\u7528\u6280\u5de7\u603b\u7ed3\u300b\u3001\u300aPython\u5b57\u7b26\u4e32\u64cd\u4f5c\u6280\u5de7\u6c47\u603b\u300b\u53ca\u300aPython\u5165\u95e8\u4e0e\u8fdb\u9636\u7ecf\u5178\u6559\u7a0b\u300b
import struct
a="abcdefg"
b=raw_input()
print a.replace(b, '')
python2这么写，python3要用input,并且print的东西要加括号，比如print('123')
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